TY  - JOUR
AU  - Kučević, Denis
AU  - Trivunović, Snežana
AU  - Šoronja, Žika
AU  - Janković, Dobrila
AU  - Stanojević, Dragan
AU  - Djedović, Radica
AU  - Papović, Tamara
PY  - 2020
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/5483
AB  - The objective of this research was to determine the association between age at first calving (AFC) and milk production in the first lactation of longevity traits for Holstein cows. The research was conducted on 2307 cows raised on 4 farms in AP Vojvodina. The cows were culled in the period from 2017 to 2018. The cows belonged to the group of Holstein Friesian breed of cattle. Cow longevity was observed using three parameters: number of lactations (NL), lifetime milk yield (LMY) and length of productive life (LPL). The research involved the influence of the farm on which the animals realized their production, the season of first calving. A mean value obtained for the length of productive life in the analysed population was 1207 days (3.30 years on average). During this period the animals on average realized 2.45 lactations and produced on average 18798 kg milk. All studied traits showed a high level of variability. From these data, the study sought to determine the influence of factors on the traits of longevity, our research present that studied factors showed high statistical significance on these traits except in the case of the season of first calving where a statistical significance effect wasn't observed. The season of first calving did not affect the animal traits for longevity and, generally, didn't affect the calving interval. Regarding the obtained correlation data between age at first calving and length of productive life, it can be concluded that belated AFC leads to reduced reproductive performance.
AB  - Sprovedeno istraživanje imalo je za cilj da utvrdi povezanost između uzrasta pri prvom teljenju i proizvodnje mleka u prvoj laktaciji sa osobinama dugovečnosti za krave holštajn-frizijske rase. Istraživanjem je obuhvaćeno 2307 krava, sa 4 različite farme sa teritorije AP Vojvodine. Krave su izlučene u periodu od 2017 do 2018 godine. Dugovečnost krava je posmatrana kroz tri pokazatelja: broj ostvarenih laktacija (NL), životna količina proizvedenog mleka (LMY) i dužina produktivnog života (LPL). Prosečno trajanje produktivnog života za sva grla uključena u analizu iznosilo je 1207 dana (3.30 godine u proseku). Grla obuhvaćena analizom u toku svog produktivnog života su prosečno proizvela 18798 kg mleka. Broj laktacija koje je svako grlo prosečno ostvarilo u toku trajanja svog produktivnog života iznosio je 2.45, pri čemu su svi ispitani parametri pokazali visok nivo varijabilnosti. U istraživanju su ispitani fiksni uticaji farme na kojoj je grlo proizvodilo, uzrasta pri prvom teljenju, sistema proizvodnje i sezone pri prvom teljenju na osobine dugovečnosti i međutelidbeni interval, korišćenjem linearnog modela. Na osnovu rezultata dobijenih istraživanjem, fiksni faktori su pokazali visoku statističku značajnost za ispitivane osobine, osim u slučaju sezone pri prvom teljenju, gde nije ispoljena statistička značajnost za osobine obuhvaćene istraživanjem. Na osnovu rezultata, utvrđena je povezanost između uzrasta pri prvom teljenju i dužine produktivnog života, pri čemu se može zaključiti da su kraći produktivni život imale životinje koje su se kasnije telile.
PB  - Institut za stočarstvo, Beograd
T2  - Biotechnology in Animal Husbandry
T1  - Association between age at first calving and milk production in first lactation on longevity traits in Holstein cows
T1  - Povezanost između uzrasta pri prvom teljenju i proizvodnje u prvoj laktaciji sa osobinama dugovečnosti kod mlečnih krava
EP  - 35
IS  - 1
SP  - 27
VL  - 36
DO  - 10.2298/BAH2001027K
ER  - 

@article{
author = "Kučević, Denis and Trivunović, Snežana and Šoronja, Žika and Janković, Dobrila and Stanojević, Dragan and Djedović, Radica and Papović, Tamara",
year = "2020",
abstract = "The objective of this research was to determine the association between age at first calving (AFC) and milk production in the first lactation of longevity traits for Holstein cows. The research was conducted on 2307 cows raised on 4 farms in AP Vojvodina. The cows were culled in the period from 2017 to 2018. The cows belonged to the group of Holstein Friesian breed of cattle. Cow longevity was observed using three parameters: number of lactations (NL), lifetime milk yield (LMY) and length of productive life (LPL). The research involved the influence of the farm on which the animals realized their production, the season of first calving. A mean value obtained for the length of productive life in the analysed population was 1207 days (3.30 years on average). During this period the animals on average realized 2.45 lactations and produced on average 18798 kg milk. All studied traits showed a high level of variability. From these data, the study sought to determine the influence of factors on the traits of longevity, our research present that studied factors showed high statistical significance on these traits except in the case of the season of first calving where a statistical significance effect wasn't observed. The season of first calving did not affect the animal traits for longevity and, generally, didn't affect the calving interval. Regarding the obtained correlation data between age at first calving and length of productive life, it can be concluded that belated AFC leads to reduced reproductive performance., Sprovedeno istraživanje imalo je za cilj da utvrdi povezanost između uzrasta pri prvom teljenju i proizvodnje mleka u prvoj laktaciji sa osobinama dugovečnosti za krave holštajn-frizijske rase. Istraživanjem je obuhvaćeno 2307 krava, sa 4 različite farme sa teritorije AP Vojvodine. Krave su izlučene u periodu od 2017 do 2018 godine. Dugovečnost krava je posmatrana kroz tri pokazatelja: broj ostvarenih laktacija (NL), životna količina proizvedenog mleka (LMY) i dužina produktivnog života (LPL). Prosečno trajanje produktivnog života za sva grla uključena u analizu iznosilo je 1207 dana (3.30 godine u proseku). Grla obuhvaćena analizom u toku svog produktivnog života su prosečno proizvela 18798 kg mleka. Broj laktacija koje je svako grlo prosečno ostvarilo u toku trajanja svog produktivnog života iznosio je 2.45, pri čemu su svi ispitani parametri pokazali visok nivo varijabilnosti. U istraživanju su ispitani fiksni uticaji farme na kojoj je grlo proizvodilo, uzrasta pri prvom teljenju, sistema proizvodnje i sezone pri prvom teljenju na osobine dugovečnosti i međutelidbeni interval, korišćenjem linearnog modela. Na osnovu rezultata dobijenih istraživanjem, fiksni faktori su pokazali visoku statističku značajnost za ispitivane osobine, osim u slučaju sezone pri prvom teljenju, gde nije ispoljena statistička značajnost za osobine obuhvaćene istraživanjem. Na osnovu rezultata, utvrđena je povezanost između uzrasta pri prvom teljenju i dužine produktivnog života, pri čemu se može zaključiti da su kraći produktivni život imale životinje koje su se kasnije telile.",
publisher = "Institut za stočarstvo, Beograd",
journal = "Biotechnology in Animal Husbandry",
title = "Association between age at first calving and milk production in first lactation on longevity traits in Holstein cows, Povezanost između uzrasta pri prvom teljenju i proizvodnje u prvoj laktaciji sa osobinama dugovečnosti kod mlečnih krava",
pages = "35-27",
number = "1",
volume = "36",
doi = "10.2298/BAH2001027K"
}

Kučević, D., Trivunović, S., Šoronja, Ž., Janković, D., Stanojević, D., Djedović, R.,& Papović, T.. (2020). Association between age at first calving and milk production in first lactation on longevity traits in Holstein cows. in Biotechnology in Animal Husbandry
Institut za stočarstvo, Beograd., 36(1), 27-35.
https://doi.org/10.2298/BAH2001027K

Kučević D, Trivunović S, Šoronja Ž, Janković D, Stanojević D, Djedović R, Papović T. Association between age at first calving and milk production in first lactation on longevity traits in Holstein cows. in Biotechnology in Animal Husbandry. 2020;36(1):27-35.
doi:10.2298/BAH2001027K .

Kučević, Denis, Trivunović, Snežana, Šoronja, Žika, Janković, Dobrila, Stanojević, Dragan, Djedović, Radica, Papović, Tamara, "Association between age at first calving and milk production in first lactation on longevity traits in Holstein cows" in Biotechnology in Animal Husbandry, 36, no. 1 (2020):27-35,
https://doi.org/10.2298/BAH2001027K . .

TY  - JOUR
AU  - Milošević-Stanković, I.
AU  - Hristov, Slavča
AU  - Maksimović, Nevena
AU  - Popović, Blaženka
AU  - Davidović, Vesna
AU  - Mekić, Cvijan
AU  - Dimitrijević, B.
AU  - Cincović, Marko R.
AU  - Stanković, Branislav
PY  - 2020
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/5444
AB  - The investigation was performed on two groups of primiparous and multiparous healthy dewormed Alpine dairy goats (25 each) during peripartal period. Blood samples were collected (jugular venipuncture) 10-15 days before and 10-15 and 30 days after the parturition into BD SST-II Advance (3.5 mL) and BD NaF 3.0 mg Na2EDTA 6.0 mg (2 mL) vacutainers, cooled and centrifuged (1500 r/min, 15 minutes and ≤1300 r/min, 10 minutes, respectively). Glucose, non-esterified fatty acids (NEFA) and β-hydroxybutyrate (BHBA) concentrations in blood sera were determined using A15 automatic spectrophotometric analyzer (Biosystem, Spain). Simultaneously, body condition scoring (BCS) was performed by Villaquiran et al. (2007) method. The obtained data were analyzed by IBM SPSS statistics 21. The glucose concentration inclined to increase in both groups. Differences between glucose levels were significant (P<0.05) 15 days before and 15 days after, as well as 15 and 30 days after the parturition, and very significant (P<0.01) 15 days before and 30 days after the parturition. The BHBA blood levels significantly differed 15 days before and 30 days after and 15 and 30 days after the parturition (P<0.05). BHBA concentration peaked at week 2 postpartum, following the increase of NEFA, providing the substrate for BHBA synthesis. NEFA levels significantly (P<0.05) differed 15 days before and 15 days after the parturition. Goats’ BCS ranged from 2 to 4 and significantly depended on glucose (r=0.392; P<0.05) and BHBA (r=0.317; P<0.05) level 15 days before parturition. BCS 30 days postpartum very significantly depended on the glucose level (r=0.450; P<0.01), significantly higher than the concentration of BHBA (r=0.351; P<0.05) and NEFA concentration (r=-0.304; P<0.05). BCS 15 days before parturition did not depend on the NEFA concentration. Fifteen days after the parturition BCS did not statistically depend on the observed indicators. Obtained data suggest that knowledge of BCS and energy indicators levels may be very useful in research and practice in order to appreciate energy metabolism of pregnant and lactating dairy ruminants, particularly dairy goats. These data are poorly documented for goats, but they can reveal early pathological metabolic changes in transiting female goat organism, enabling successful prophylactic, as well as, therapeutic intervention.
PB  - Massimo Morgante
T2  - Large Animal Review
T1  - Energy metabolism indicators and body condition in peripartal period of alpine goats
EP  - 18
IS  - 1
SP  - 13
VL  - 26
UR  - https://hdl.handle.net/21.15107/rcub_agrospace_5444
ER  - 

@article{
author = "Milošević-Stanković, I. and Hristov, Slavča and Maksimović, Nevena and Popović, Blaženka and Davidović, Vesna and Mekić, Cvijan and Dimitrijević, B. and Cincović, Marko R. and Stanković, Branislav",
year = "2020",
abstract = "The investigation was performed on two groups of primiparous and multiparous healthy dewormed Alpine dairy goats (25 each) during peripartal period. Blood samples were collected (jugular venipuncture) 10-15 days before and 10-15 and 30 days after the parturition into BD SST-II Advance (3.5 mL) and BD NaF 3.0 mg Na2EDTA 6.0 mg (2 mL) vacutainers, cooled and centrifuged (1500 r/min, 15 minutes and ≤1300 r/min, 10 minutes, respectively). Glucose, non-esterified fatty acids (NEFA) and β-hydroxybutyrate (BHBA) concentrations in blood sera were determined using A15 automatic spectrophotometric analyzer (Biosystem, Spain). Simultaneously, body condition scoring (BCS) was performed by Villaquiran et al. (2007) method. The obtained data were analyzed by IBM SPSS statistics 21. The glucose concentration inclined to increase in both groups. Differences between glucose levels were significant (P<0.05) 15 days before and 15 days after, as well as 15 and 30 days after the parturition, and very significant (P<0.01) 15 days before and 30 days after the parturition. The BHBA blood levels significantly differed 15 days before and 30 days after and 15 and 30 days after the parturition (P<0.05). BHBA concentration peaked at week 2 postpartum, following the increase of NEFA, providing the substrate for BHBA synthesis. NEFA levels significantly (P<0.05) differed 15 days before and 15 days after the parturition. Goats’ BCS ranged from 2 to 4 and significantly depended on glucose (r=0.392; P<0.05) and BHBA (r=0.317; P<0.05) level 15 days before parturition. BCS 30 days postpartum very significantly depended on the glucose level (r=0.450; P<0.01), significantly higher than the concentration of BHBA (r=0.351; P<0.05) and NEFA concentration (r=-0.304; P<0.05). BCS 15 days before parturition did not depend on the NEFA concentration. Fifteen days after the parturition BCS did not statistically depend on the observed indicators. Obtained data suggest that knowledge of BCS and energy indicators levels may be very useful in research and practice in order to appreciate energy metabolism of pregnant and lactating dairy ruminants, particularly dairy goats. These data are poorly documented for goats, but they can reveal early pathological metabolic changes in transiting female goat organism, enabling successful prophylactic, as well as, therapeutic intervention.",
publisher = "Massimo Morgante",
journal = "Large Animal Review",
title = "Energy metabolism indicators and body condition in peripartal period of alpine goats",
pages = "18-13",
number = "1",
volume = "26",
url = "https://hdl.handle.net/21.15107/rcub_agrospace_5444"
}

Milošević-Stanković, I., Hristov, S., Maksimović, N., Popović, B., Davidović, V., Mekić, C., Dimitrijević, B., Cincović, M. R.,& Stanković, B.. (2020). Energy metabolism indicators and body condition in peripartal period of alpine goats. in Large Animal Review
Massimo Morgante., 26(1), 13-18.
https://hdl.handle.net/21.15107/rcub_agrospace_5444

Milošević-Stanković I, Hristov S, Maksimović N, Popović B, Davidović V, Mekić C, Dimitrijević B, Cincović MR, Stanković B. Energy metabolism indicators and body condition in peripartal period of alpine goats. in Large Animal Review. 2020;26(1):13-18.
https://hdl.handle.net/21.15107/rcub_agrospace_5444 .

Milošević-Stanković, I., Hristov, Slavča, Maksimović, Nevena, Popović, Blaženka, Davidović, Vesna, Mekić, Cvijan, Dimitrijević, B., Cincović, Marko R., Stanković, Branislav, "Energy metabolism indicators and body condition in peripartal period of alpine goats" in Large Animal Review, 26, no. 1 (2020):13-18,
https://hdl.handle.net/21.15107/rcub_agrospace_5444 .

TY  - JOUR
AU  - Petrović, Milun D.
AU  - Rakonjac, Simeon
AU  - Bogdanović, Vladan
AU  - Bogosavljević-Bošković, Snežana
AU  - Djoković, Radojica
AU  - Djedović, Radica
AU  - Petrović, Miloš
PY  - 2019
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/5177
AB  - The effects of fixed non-genetic factors (farm, season of birth, year of birth, total number of lactations) and a continuous non-genetic factor (age at first conception) on the expression and variability of longevity traits such as age at culling, length of productive life, days in milk and cow efficiency index were investigated in 2548 Simmental cows in three farming areas. Based on the model used for the analysis of the effects of non-genetic factors, including the environment and cow age at first conception, on the expression and variability of longevity traits, the overall means for age at culling, length of productive life, days in milk and cow efficiency index were 2445.21±17.49 days, 1562.55±17.71 days, 1094.17±12.28 days and 58.68±0.32%, respectively. The effect of farming area, year of birth and lactation group on longevity traits was very significant (P lt 0.01), whereas the effect of season of birth was significant (P lt 0.05). Age at first conception had a highly significant (P lt 0.01) effect on age at culling, length of productive life and cow efficiency index, and no significant effect on days in milk (P>0.05). Based on the model used, the coefficients of determination (R2 ) were very significant (P lt 0.01) for all longevity traits, and ranged from 0.898 for age at culling to 0.959 for days in milk.
AB  - Uticaj fiksnih (farma, sezona i godina rođenja, ukupan broj laktacija) i kontinuelnih (uzrast pri prvoj oplodnji) sistematskih faktora na ispoljenost i varijabilnost osobina dugovečnosti kao što su uzrast pri izlučenju, dužina produktivnog života, ukupan broj muznih dana i indeks iskorišćavanja krava proučavan je na uzorku od 2548 simentalskih krava raspoređenih na tri odgajivačka područja. Na osnovu primenjenog modela za analizu uticaja sistematskih faktora okoline i uzrasta krava pri prvoj oplodnji na ispoljenost i varijabilnost osobina dugovečnosti opšti prosek za uzrast pri izlučenju, dužinu produktivnog života, ukupan broj muznih dana i indeks iskorišćavanja krava iznosio je 2445,21±17,49 dana, 1562,55±17,71 dana, 1094,17±12,28 dana i 58,68±0,32%. Uticaj odgajivačkog područja, godine rođenja i grupe laktacija na osobine dugovečnosti bio je vrlo značajan (P lt 0.01), dok je uticaj sezone rođenja krava bio značajan (P lt 0.05). Uzrast pri prvoj oplodnji visoko značajno (P lt 0.01) je uticao na uzrast pri izlučenju, dužinu produktivnog života i indeks iskorišćavanja krava, dok na ukupan broj muznih dana nije imao značajan uticaj (P>0.05). Dobijeni koeficijenti determinacije (R2 ), na osnovu primenjenog modela, za sve osobine dugovečnosti bili su vrlo značajni (P lt 0.01) i kretali su se od 0,898 kod uzrasta pri izlučenju do 0,959 kod ukupnog broja muznih dana.
PB  - Institut za stočarstvo, Beograd
T2  - Biotechnology in Animal Husbandry
T1  - Effect of non-genetic factors on longevity traits in Simmental cows
T1  - Uticaj sistematskih faktora na osobine dugovečnosti kod krava simentalske rase
EP  - 241
IS  - 3
SP  - 229
VL  - 35
DO  - 10.2298/BAH1903229P
ER  - 

@article{
author = "Petrović, Milun D. and Rakonjac, Simeon and Bogdanović, Vladan and Bogosavljević-Bošković, Snežana and Djoković, Radojica and Djedović, Radica and Petrović, Miloš",
year = "2019",
abstract = "The effects of fixed non-genetic factors (farm, season of birth, year of birth, total number of lactations) and a continuous non-genetic factor (age at first conception) on the expression and variability of longevity traits such as age at culling, length of productive life, days in milk and cow efficiency index were investigated in 2548 Simmental cows in three farming areas. Based on the model used for the analysis of the effects of non-genetic factors, including the environment and cow age at first conception, on the expression and variability of longevity traits, the overall means for age at culling, length of productive life, days in milk and cow efficiency index were 2445.21±17.49 days, 1562.55±17.71 days, 1094.17±12.28 days and 58.68±0.32%, respectively. The effect of farming area, year of birth and lactation group on longevity traits was very significant (P lt 0.01), whereas the effect of season of birth was significant (P lt 0.05). Age at first conception had a highly significant (P lt 0.01) effect on age at culling, length of productive life and cow efficiency index, and no significant effect on days in milk (P>0.05). Based on the model used, the coefficients of determination (R2 ) were very significant (P lt 0.01) for all longevity traits, and ranged from 0.898 for age at culling to 0.959 for days in milk., Uticaj fiksnih (farma, sezona i godina rođenja, ukupan broj laktacija) i kontinuelnih (uzrast pri prvoj oplodnji) sistematskih faktora na ispoljenost i varijabilnost osobina dugovečnosti kao što su uzrast pri izlučenju, dužina produktivnog života, ukupan broj muznih dana i indeks iskorišćavanja krava proučavan je na uzorku od 2548 simentalskih krava raspoređenih na tri odgajivačka područja. Na osnovu primenjenog modela za analizu uticaja sistematskih faktora okoline i uzrasta krava pri prvoj oplodnji na ispoljenost i varijabilnost osobina dugovečnosti opšti prosek za uzrast pri izlučenju, dužinu produktivnog života, ukupan broj muznih dana i indeks iskorišćavanja krava iznosio je 2445,21±17,49 dana, 1562,55±17,71 dana, 1094,17±12,28 dana i 58,68±0,32%. Uticaj odgajivačkog područja, godine rođenja i grupe laktacija na osobine dugovečnosti bio je vrlo značajan (P lt 0.01), dok je uticaj sezone rođenja krava bio značajan (P lt 0.05). Uzrast pri prvoj oplodnji visoko značajno (P lt 0.01) je uticao na uzrast pri izlučenju, dužinu produktivnog života i indeks iskorišćavanja krava, dok na ukupan broj muznih dana nije imao značajan uticaj (P>0.05). Dobijeni koeficijenti determinacije (R2 ), na osnovu primenjenog modela, za sve osobine dugovečnosti bili su vrlo značajni (P lt 0.01) i kretali su se od 0,898 kod uzrasta pri izlučenju do 0,959 kod ukupnog broja muznih dana.",
publisher = "Institut za stočarstvo, Beograd",
journal = "Biotechnology in Animal Husbandry",
title = "Effect of non-genetic factors on longevity traits in Simmental cows, Uticaj sistematskih faktora na osobine dugovečnosti kod krava simentalske rase",
pages = "241-229",
number = "3",
volume = "35",
doi = "10.2298/BAH1903229P"
}

Petrović, M. D., Rakonjac, S., Bogdanović, V., Bogosavljević-Bošković, S., Djoković, R., Djedović, R.,& Petrović, M.. (2019). Effect of non-genetic factors on longevity traits in Simmental cows. in Biotechnology in Animal Husbandry
Institut za stočarstvo, Beograd., 35(3), 229-241.
https://doi.org/10.2298/BAH1903229P

Petrović MD, Rakonjac S, Bogdanović V, Bogosavljević-Bošković S, Djoković R, Djedović R, Petrović M. Effect of non-genetic factors on longevity traits in Simmental cows. in Biotechnology in Animal Husbandry. 2019;35(3):229-241.
doi:10.2298/BAH1903229P .

Petrović, Milun D., Rakonjac, Simeon, Bogdanović, Vladan, Bogosavljević-Bošković, Snežana, Djoković, Radojica, Djedović, Radica, Petrović, Miloš, "Effect of non-genetic factors on longevity traits in Simmental cows" in Biotechnology in Animal Husbandry, 35, no. 3 (2019):229-241,
https://doi.org/10.2298/BAH1903229P . .

TY  - JOUR
AU  - Zeljić, Krstina
AU  - Stanojević, Dragan
AU  - Bogdanović, Vladan
AU  - Mekić, Cvijan
AU  - Ružić-Muslić, Dragana
AU  - Maksimović, Nevena
AU  - Stojiljković, Nenad
PY  - 2019
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/5194
AB  - The objective of this research paper was to estimate heritability coefficients (heritability) of growth traits in the lambs of indigenous Sjenicka Pramenka breed. The research was conducted on a sample which included 421 lambs the descendants of 15 sires and 187 sheep-dams, raised on 3 private farms in Kolubarski district, Serbia. The effect of fixed factors was studied while the values of heritability coefficients were estimated within the frame of SAS software package. A statistically highly significant (**=P lt 0.01) effect on studied traits had following parameters: sex, year of lambing, type of lambing, farm and method of applied reproductive technology. By means of REML method and using the sire model the values of heritability coefficients were determined for the following traits: average lamb birth weight (BW0), average lamb body weight at 30 days (BW30) and average lamb body weight at 90 days (BW90) being: 0.0355; 0.4642 and 0.3018, respectively.
AB  - Cilj rada bio je da se procene koeficijenti naslednosti (heritabilitet) osobina porasta kod jagnjadi sjeničke pramenke. Istraživanje je sprovedeno na uzorku od 421 jagnjadi, potomaka 15 očeva i 187 ovaca-majki sa 3 privatne farme u Kolubarskom okrugu. Ispitan je uticaj fiksnih faktora i procenjene su vrednosti koeficijenata naslednosti u okviru SAS softverskog paketa. Visoko statistički značajan (**=P lt 0,01) uticaj na ispitivane osobine imali su: pol, godina jagnjenja, tip jagnjenja, farma i metod primenjene reproduktivne tehnologije. Metodom intraklasne korelacije polusrodnika po ocu utvrđene su vrednosti koeficijenta naslednosti za osobine: prosečna telesna masa jagnjadi na rođenju (BW0), prosečna telesna masa jagnjadi sa 30 dana starosti (BW30) i prosečna telesna masa jagnjadi sa 90 dana starosti (BW90) i iznosile su: 0,0355; 0,4642 i 0,3018, respektivno.
PB  - Institut za stočarstvo, Beograd
T2  - Biotechnology in Animal Husbandry
T1  - Estimation of growth traits heritability coefficients in sheep
T1  - Procena koeficijenta naslednosti za osobine porasta kod ovaca
EP  - 355
IS  - 4
SP  - 347
VL  - 35
DO  - 10.2298/BAH1904347Z
ER  - 

@article{
author = "Zeljić, Krstina and Stanojević, Dragan and Bogdanović, Vladan and Mekić, Cvijan and Ružić-Muslić, Dragana and Maksimović, Nevena and Stojiljković, Nenad",
year = "2019",
abstract = "The objective of this research paper was to estimate heritability coefficients (heritability) of growth traits in the lambs of indigenous Sjenicka Pramenka breed. The research was conducted on a sample which included 421 lambs the descendants of 15 sires and 187 sheep-dams, raised on 3 private farms in Kolubarski district, Serbia. The effect of fixed factors was studied while the values of heritability coefficients were estimated within the frame of SAS software package. A statistically highly significant (**=P lt 0.01) effect on studied traits had following parameters: sex, year of lambing, type of lambing, farm and method of applied reproductive technology. By means of REML method and using the sire model the values of heritability coefficients were determined for the following traits: average lamb birth weight (BW0), average lamb body weight at 30 days (BW30) and average lamb body weight at 90 days (BW90) being: 0.0355; 0.4642 and 0.3018, respectively., Cilj rada bio je da se procene koeficijenti naslednosti (heritabilitet) osobina porasta kod jagnjadi sjeničke pramenke. Istraživanje je sprovedeno na uzorku od 421 jagnjadi, potomaka 15 očeva i 187 ovaca-majki sa 3 privatne farme u Kolubarskom okrugu. Ispitan je uticaj fiksnih faktora i procenjene su vrednosti koeficijenata naslednosti u okviru SAS softverskog paketa. Visoko statistički značajan (**=P lt 0,01) uticaj na ispitivane osobine imali su: pol, godina jagnjenja, tip jagnjenja, farma i metod primenjene reproduktivne tehnologije. Metodom intraklasne korelacije polusrodnika po ocu utvrđene su vrednosti koeficijenta naslednosti za osobine: prosečna telesna masa jagnjadi na rođenju (BW0), prosečna telesna masa jagnjadi sa 30 dana starosti (BW30) i prosečna telesna masa jagnjadi sa 90 dana starosti (BW90) i iznosile su: 0,0355; 0,4642 i 0,3018, respektivno.",
publisher = "Institut za stočarstvo, Beograd",
journal = "Biotechnology in Animal Husbandry",
title = "Estimation of growth traits heritability coefficients in sheep, Procena koeficijenta naslednosti za osobine porasta kod ovaca",
pages = "355-347",
number = "4",
volume = "35",
doi = "10.2298/BAH1904347Z"
}

Zeljić, K., Stanojević, D., Bogdanović, V., Mekić, C., Ružić-Muslić, D., Maksimović, N.,& Stojiljković, N.. (2019). Estimation of growth traits heritability coefficients in sheep. in Biotechnology in Animal Husbandry
Institut za stočarstvo, Beograd., 35(4), 347-355.
https://doi.org/10.2298/BAH1904347Z

Zeljić K, Stanojević D, Bogdanović V, Mekić C, Ružić-Muslić D, Maksimović N, Stojiljković N. Estimation of growth traits heritability coefficients in sheep. in Biotechnology in Animal Husbandry. 2019;35(4):347-355.
doi:10.2298/BAH1904347Z .

Zeljić, Krstina, Stanojević, Dragan, Bogdanović, Vladan, Mekić, Cvijan, Ružić-Muslić, Dragana, Maksimović, Nevena, Stojiljković, Nenad, "Estimation of growth traits heritability coefficients in sheep" in Biotechnology in Animal Husbandry, 35, no. 4 (2019):347-355,
https://doi.org/10.2298/BAH1904347Z . .

TY  - JOUR
AU  - Stojanović, Bojan
AU  - Simić, Aleksandar
AU  - Grubić, Goran
AU  - Djordjević, Nenad
AU  - Božičković, Aleksa
AU  - Davidović, Vesna
PY  - 2019
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/5209
AB  - A cutting experiment was conducted to analyze the changes in the crude protein (CP) fraction content and in the estimated ruminal protein degradability of forage, obtained in conditions of simulated rotational spring grazing on permanent grassland. The field trial was conducted on permanent pasture during 2015 and included three cuttings as a simulated rotational spring grazing. For determination of protein degradability of pasture forage, the fractionation of the CP according to Cornell Net Carbohydrate and Protein System (CNCPS v6.5) and the Streptomyces griseus protease assay were used. Relative to CP, no significant differences were found among cuts for ammonia N content (A1 fraction) and for protein fraction C which is completely unavailable to the animals. Values for soluble true protein (A2 fraction) and cell wall-associated protein, which is acid detergent soluble (B2), were significantly increased (p lt 0.05) while a significant reduction (p lt 0.05) of the moderately degradable protein (B1) content was determined during the growing season. The lower rumen degradable protein (RDP) content of grassland herbage was obtained in the second cut which was significant (p lt 0.05) according to the CNCPS procedure. Obtained high solubility and degradability of CP in pasture require adequate content of readily available carbohydrates in rations for grazing ruminants to provide efficient utilization of consumed protein.
AB  - Istraživanje je obavljeno u cilju utvrđivanja promena u sadržaju frakcija sirovog proteina (SP) i ruminalne razgradivosti proteina zelene mase dobijene košenjem prirodnog travnjaka u uslovima koji su odgovarali rotacijskoj pregonskoj ispaši tokom prolećne sezone. Poljski ogled je izveden na permanentnom pašnjaku tokom proleća 2015. godine i uključivao je tri otkosa koji su odgovarali ciklusima ispaše. Za determinisanje razgradivosti proteina zelene mase, frakcionisanje sirovog proteina je obavljeno prema proceduri Cornell Net Carbohydrate and Protein System (CNCPS v6.5), kao i primenom in vitro metode korišćenjem Streptomyces griseus proteaze. U odnosu na SP, nisu utvrđene značajne razlike između otkosa - ciklusa ispaše u pogledu sadržaja amonijačnog N (frakcija A1), kao i u pogledu sadržaja proteinske frakcije C, koja je potpuno nedostupna životinjama. Sadržaj rastvorljivog pravog proteina (frakcija A2) i proteina vezanog za ćelijski zid, koji je rastvorljiv u kiselom deterdžentu (frakcija B2) se značajno povećavao (p lt 0,05), dok se sadržaj umereno razgradive frakcije proteina (B1) značajno smanjivao (p lt 0,05) tokom prolećne sezone vegetacije. Najmanja vrednost za ruminalnu razgradivost i učešće RDP (protein razgradiv u rumenu) u SP zelene mase sa pašnjaka utvrđena je u drugom otkosu, a ova razlika je bila značajna (p lt 0,05) kada je ruminalna razgradivost proteina determinisana korišćenjem procedure CNCPS. Utvrđeno visoko učešće rastvorljive frakcije SP i visoka ruminalna razgradivost SP zelene mase sa pašnjaka ukazuju na potrebu podrobnijeg balansiranja obroka za preživare na paši u pogledu sadržaja lako razgradivih ugljenih hidrata, a u cilju obezbeđenja efikasnog iskorišćavanja konzumiranog proteina.
PB  - Univerzitet u Beogradu - Poljoprivredni fakultet, Beograd
T2  - Journal of Agricultural Sciences (Belgrade)
T1  - Protein degradability of grassland forage under simulated rotational spring grazing
T1  - Razgradivost proteina zelene mase sa travnjaka u uslovima prolećne pregonske ispaše
EP  - 263
IS  - 3
SP  - 255
VL  - 64
DO  - 10.2298/JAS1903255S
ER  - 

@article{
author = "Stojanović, Bojan and Simić, Aleksandar and Grubić, Goran and Djordjević, Nenad and Božičković, Aleksa and Davidović, Vesna",
year = "2019",
abstract = "A cutting experiment was conducted to analyze the changes in the crude protein (CP) fraction content and in the estimated ruminal protein degradability of forage, obtained in conditions of simulated rotational spring grazing on permanent grassland. The field trial was conducted on permanent pasture during 2015 and included three cuttings as a simulated rotational spring grazing. For determination of protein degradability of pasture forage, the fractionation of the CP according to Cornell Net Carbohydrate and Protein System (CNCPS v6.5) and the Streptomyces griseus protease assay were used. Relative to CP, no significant differences were found among cuts for ammonia N content (A1 fraction) and for protein fraction C which is completely unavailable to the animals. Values for soluble true protein (A2 fraction) and cell wall-associated protein, which is acid detergent soluble (B2), were significantly increased (p lt 0.05) while a significant reduction (p lt 0.05) of the moderately degradable protein (B1) content was determined during the growing season. The lower rumen degradable protein (RDP) content of grassland herbage was obtained in the second cut which was significant (p lt 0.05) according to the CNCPS procedure. Obtained high solubility and degradability of CP in pasture require adequate content of readily available carbohydrates in rations for grazing ruminants to provide efficient utilization of consumed protein., Istraživanje je obavljeno u cilju utvrđivanja promena u sadržaju frakcija sirovog proteina (SP) i ruminalne razgradivosti proteina zelene mase dobijene košenjem prirodnog travnjaka u uslovima koji su odgovarali rotacijskoj pregonskoj ispaši tokom prolećne sezone. Poljski ogled je izveden na permanentnom pašnjaku tokom proleća 2015. godine i uključivao je tri otkosa koji su odgovarali ciklusima ispaše. Za determinisanje razgradivosti proteina zelene mase, frakcionisanje sirovog proteina je obavljeno prema proceduri Cornell Net Carbohydrate and Protein System (CNCPS v6.5), kao i primenom in vitro metode korišćenjem Streptomyces griseus proteaze. U odnosu na SP, nisu utvrđene značajne razlike između otkosa - ciklusa ispaše u pogledu sadržaja amonijačnog N (frakcija A1), kao i u pogledu sadržaja proteinske frakcije C, koja je potpuno nedostupna životinjama. Sadržaj rastvorljivog pravog proteina (frakcija A2) i proteina vezanog za ćelijski zid, koji je rastvorljiv u kiselom deterdžentu (frakcija B2) se značajno povećavao (p lt 0,05), dok se sadržaj umereno razgradive frakcije proteina (B1) značajno smanjivao (p lt 0,05) tokom prolećne sezone vegetacije. Najmanja vrednost za ruminalnu razgradivost i učešće RDP (protein razgradiv u rumenu) u SP zelene mase sa pašnjaka utvrđena je u drugom otkosu, a ova razlika je bila značajna (p lt 0,05) kada je ruminalna razgradivost proteina determinisana korišćenjem procedure CNCPS. Utvrđeno visoko učešće rastvorljive frakcije SP i visoka ruminalna razgradivost SP zelene mase sa pašnjaka ukazuju na potrebu podrobnijeg balansiranja obroka za preživare na paši u pogledu sadržaja lako razgradivih ugljenih hidrata, a u cilju obezbeđenja efikasnog iskorišćavanja konzumiranog proteina.",
publisher = "Univerzitet u Beogradu - Poljoprivredni fakultet, Beograd",
journal = "Journal of Agricultural Sciences (Belgrade)",
title = "Protein degradability of grassland forage under simulated rotational spring grazing, Razgradivost proteina zelene mase sa travnjaka u uslovima prolećne pregonske ispaše",
pages = "263-255",
number = "3",
volume = "64",
doi = "10.2298/JAS1903255S"
}

Stojanović, B., Simić, A., Grubić, G., Djordjević, N., Božičković, A.,& Davidović, V.. (2019). Protein degradability of grassland forage under simulated rotational spring grazing. in Journal of Agricultural Sciences (Belgrade)
Univerzitet u Beogradu - Poljoprivredni fakultet, Beograd., 64(3), 255-263.
https://doi.org/10.2298/JAS1903255S

Stojanović B, Simić A, Grubić G, Djordjević N, Božičković A, Davidović V. Protein degradability of grassland forage under simulated rotational spring grazing. in Journal of Agricultural Sciences (Belgrade). 2019;64(3):255-263.
doi:10.2298/JAS1903255S .

Stojanović, Bojan, Simić, Aleksandar, Grubić, Goran, Djordjević, Nenad, Božičković, Aleksa, Davidović, Vesna, "Protein degradability of grassland forage under simulated rotational spring grazing" in Journal of Agricultural Sciences (Belgrade), 64, no. 3 (2019):255-263,
https://doi.org/10.2298/JAS1903255S . .

TY  - JOUR
AU  - Kučević, Denis
AU  - Papović, Tamara
AU  - Tomović, Vladimir
AU  - Plavsić, Miroslav
AU  - Jajić, Igor
AU  - Krstović, Sasa
AU  - Stanojević, Dragan
PY  - 2019
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/4969
AB  - Simple Summary: Cattle have been selected for their adaptation to a specific environment and productive system, in which they show, in theory, their best economical results. With appropriate nutrition, the calf's performance enhances during early life and improve the production limit providing distinctive opportunities to optimize feeding strategies and increase the profitability of beef production. There is considerable variation in fattening protocols as well as in farm conditions. Meat quality parameters and carcass traits are the main objectives of most research carried out in the beef production area. Optimizing meat quality parameters and carcass traits are important for farmer profits and consumer satisfaction. According to that, at the phenotypic level, growth performance and traits could be observed. Rearing practices are known to have an impact on cattle carcasses and meat characteristics. The rearing practices applied after calving have an influence on the animal's performance at the growth period and can involve different animal properties at the beginning of the fattening period. Abstract: This study assessed the effects of farm management during rearing practices in the first months of a calf's life on growth performance and meat quality traits during the fattening period. A total of 48 Simmental calves were divided into two groups at a commercial cattle feedlot. In the first group were calves from the same farm and herd (n = 12 male and n = 12 female). The second group included calves from several different herds and farms (n = 12 male and n= 12 female). Calves were transferred to a feedlot and fed with a commercial feedlot ration at three to four months of age. The aim was to determine if identical fattening conditions at feedlot can reduce initial calf rearing differences between cattle during the fattening period. Bulls grew faster than heifers reaching higher total gain and showed significantly higher slaughter weight than heifers. Meat samples of heifers from the same herd had the highest intramuscular fat content and reddest color with significant differences among cattle groups. The most abundant fatty acid was oleic acid (C18:1), followed by palmitic (C16:0), stearic (C18:0), linoleic (C18:2), and myristic acid (C14:0). Meat samples of heifers from different herds were darkest with highest content of iron (Fe) with significant differences among cattle groups.
PB  - MDPI, BASEL
T2  - Animals
T1  - Influence of Farm Management for Calves on Growth Performance and Meat Quality Traits Duration Fattening of Simmental Bulls and Heifers
IS  - 11
VL  - 9
DO  - 10.3390/ani9110941
ER  - 

@article{
author = "Kučević, Denis and Papović, Tamara and Tomović, Vladimir and Plavsić, Miroslav and Jajić, Igor and Krstović, Sasa and Stanojević, Dragan",
year = "2019",
abstract = "Simple Summary: Cattle have been selected for their adaptation to a specific environment and productive system, in which they show, in theory, their best economical results. With appropriate nutrition, the calf's performance enhances during early life and improve the production limit providing distinctive opportunities to optimize feeding strategies and increase the profitability of beef production. There is considerable variation in fattening protocols as well as in farm conditions. Meat quality parameters and carcass traits are the main objectives of most research carried out in the beef production area. Optimizing meat quality parameters and carcass traits are important for farmer profits and consumer satisfaction. According to that, at the phenotypic level, growth performance and traits could be observed. Rearing practices are known to have an impact on cattle carcasses and meat characteristics. The rearing practices applied after calving have an influence on the animal's performance at the growth period and can involve different animal properties at the beginning of the fattening period. Abstract: This study assessed the effects of farm management during rearing practices in the first months of a calf's life on growth performance and meat quality traits during the fattening period. A total of 48 Simmental calves were divided into two groups at a commercial cattle feedlot. In the first group were calves from the same farm and herd (n = 12 male and n = 12 female). The second group included calves from several different herds and farms (n = 12 male and n= 12 female). Calves were transferred to a feedlot and fed with a commercial feedlot ration at three to four months of age. The aim was to determine if identical fattening conditions at feedlot can reduce initial calf rearing differences between cattle during the fattening period. Bulls grew faster than heifers reaching higher total gain and showed significantly higher slaughter weight than heifers. Meat samples of heifers from the same herd had the highest intramuscular fat content and reddest color with significant differences among cattle groups. The most abundant fatty acid was oleic acid (C18:1), followed by palmitic (C16:0), stearic (C18:0), linoleic (C18:2), and myristic acid (C14:0). Meat samples of heifers from different herds were darkest with highest content of iron (Fe) with significant differences among cattle groups.",
publisher = "MDPI, BASEL",
journal = "Animals",
title = "Influence of Farm Management for Calves on Growth Performance and Meat Quality Traits Duration Fattening of Simmental Bulls and Heifers",
number = "11",
volume = "9",
doi = "10.3390/ani9110941"
}

Kučević, D., Papović, T., Tomović, V., Plavsić, M., Jajić, I., Krstović, S.,& Stanojević, D.. (2019). Influence of Farm Management for Calves on Growth Performance and Meat Quality Traits Duration Fattening of Simmental Bulls and Heifers. in Animals
MDPI, BASEL., 9(11).
https://doi.org/10.3390/ani9110941

Kučević D, Papović T, Tomović V, Plavsić M, Jajić I, Krstović S, Stanojević D. Influence of Farm Management for Calves on Growth Performance and Meat Quality Traits Duration Fattening of Simmental Bulls and Heifers. in Animals. 2019;9(11).
doi:10.3390/ani9110941 .

Kučević, Denis, Papović, Tamara, Tomović, Vladimir, Plavsić, Miroslav, Jajić, Igor, Krstović, Sasa, Stanojević, Dragan, "Influence of Farm Management for Calves on Growth Performance and Meat Quality Traits Duration Fattening of Simmental Bulls and Heifers" in Animals, 9, no. 11 (2019),
https://doi.org/10.3390/ani9110941 . .

TY  - JOUR
AU  - Samolovac, Ljiljana
AU  - Hristov, Slavča
AU  - Stanković, Branislav
AU  - Maletić, Radojka
AU  - Relić, Renata
AU  - Zlatanović, Zvonko
PY  - 2019
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/5047
AB  - The aim of this study was to analyze the influence of farm conditions and season of birth on body mass, respiratory system diseases and diarrhea occurrence, and mortality during the first month of calves' life. The study was conducted on two tie-stall-system farms with intensive milk production and similar nutrition of dairy cows, but with differences in rearing conditions of calves in the first week of life. The calves were tied on lying area with straw as bedding material (farm A) or free in individual boxes with straw bedding (farm B). In the first consumption, they take 1-2 L of colostrum produced by their mother or by another cow (farm A), or 2.5-3 L of colostrum produced by their mother or by another cow or frozen colostrum (farm B). According to the results, average body mass of calves was significantly higher on farm B than of those on farm A at all ages (on birth, at 8 days, and 30 days). Mortality rate and diarrhea occurrence in calves were higher on farm B, while respiratory system diseases incidence was higher on farm A. All observed welfare indicators were very significantly (P  lt  0.01) influenced by farm conditions and birth season.
PB  - Scientific Technical Research Council Turkey-Tubitak, Ankara
T2  - Turkish Journal of Veterinary & Animal Sciences
T1  - Influence of rearing conditions and birth season on calf welfare in the first month of life
EP  - 109
IS  - 1
SP  - 102
VL  - 43
DO  - 10.3906/vet-1710-80
ER  - 

@article{
author = "Samolovac, Ljiljana and Hristov, Slavča and Stanković, Branislav and Maletić, Radojka and Relić, Renata and Zlatanović, Zvonko",
year = "2019",
abstract = "The aim of this study was to analyze the influence of farm conditions and season of birth on body mass, respiratory system diseases and diarrhea occurrence, and mortality during the first month of calves' life. The study was conducted on two tie-stall-system farms with intensive milk production and similar nutrition of dairy cows, but with differences in rearing conditions of calves in the first week of life. The calves were tied on lying area with straw as bedding material (farm A) or free in individual boxes with straw bedding (farm B). In the first consumption, they take 1-2 L of colostrum produced by their mother or by another cow (farm A), or 2.5-3 L of colostrum produced by their mother or by another cow or frozen colostrum (farm B). According to the results, average body mass of calves was significantly higher on farm B than of those on farm A at all ages (on birth, at 8 days, and 30 days). Mortality rate and diarrhea occurrence in calves were higher on farm B, while respiratory system diseases incidence was higher on farm A. All observed welfare indicators were very significantly (P  lt  0.01) influenced by farm conditions and birth season.",
publisher = "Scientific Technical Research Council Turkey-Tubitak, Ankara",
journal = "Turkish Journal of Veterinary & Animal Sciences",
title = "Influence of rearing conditions and birth season on calf welfare in the first month of life",
pages = "109-102",
number = "1",
volume = "43",
doi = "10.3906/vet-1710-80"
}

Samolovac, L., Hristov, S., Stanković, B., Maletić, R., Relić, R.,& Zlatanović, Z.. (2019). Influence of rearing conditions and birth season on calf welfare in the first month of life. in Turkish Journal of Veterinary & Animal Sciences
Scientific Technical Research Council Turkey-Tubitak, Ankara., 43(1), 102-109.
https://doi.org/10.3906/vet-1710-80

Samolovac L, Hristov S, Stanković B, Maletić R, Relić R, Zlatanović Z. Influence of rearing conditions and birth season on calf welfare in the first month of life. in Turkish Journal of Veterinary & Animal Sciences. 2019;43(1):102-109.
doi:10.3906/vet-1710-80 .

Samolovac, Ljiljana, Hristov, Slavča, Stanković, Branislav, Maletić, Radojka, Relić, Renata, Zlatanović, Zvonko, "Influence of rearing conditions and birth season on calf welfare in the first month of life" in Turkish Journal of Veterinary & Animal Sciences, 43, no. 1 (2019):102-109,
https://doi.org/10.3906/vet-1710-80 . .

TY  - JOUR
AU  - Hristov, Slavča
AU  - Stanković, Branislav
AU  - Ostojić-Andrić, Dušica
AU  - Maksimović, Nevena
AU  - Nakov, Dimitar
PY  - 2019
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/5210
AB  - In this review paper, contradictions in modern livestock production as dilemmas of farm animal welfare are considered. The main dilemma concerns the question of whether extensive production in small farms is generally better than intensive production in large farms. The next dilemma relates to an intensive selection of animals and its impact on the emergence of welfare problems. Another dilemma is related to the two main interconnected problems of pig welfare in individual farrowing pens: the piglet death by crushing and the sows' movement restriction. Similarly, welfare dilemma is the paradox of parent flocks of broiler line breeding that could not be solved until the pressure for genetic advancement in production is required due to the economic efficiency. The next example of the dilemma is the widespread practice of tail docking in piglets in order to reduce the risk of tail biting. Although the tail docking is painful and may cause death, anaesthesia is usually not applied on farms. A similar example of the dilemma is debeaking in the laying hens and the occurrence of feather pecking in free rearing systems. It is important to notice the difference between the described dilemmas, where one premise opposes the other, which is essentially a conflict between the animal welfare goals and other values, such as economic, ethical and moral issues. Finally, there are also some dilemmas about the consumers' willingness to pay a higher price of products that originate from welfare friendly rearing conditions.
AB  - U ovom preglednom radu razmatraju se kontradikcije u modernoj stočarskoj proizvodnji kao dileme koje se odnose na dobrobit farmskih životinja. Glavna dilema odnosi se na pitanje da li je ekstenzivna proizvodnja na malim farmama generalno bolja od intenzivne proizvodnje na velikim farmama. Sledeća dilema odnosi se na primenu intenzivne selekcije životinja i njen uticaj na nastanak problema dobrobiti. Naredna dilema se odnosi na dva glavna međusobno povezana problema dobrobiti svinja u pojedinačnim boksovima za prašenje: uginuća prasadi gnječenjem i ograničenje kretanja krmača. Takođe, dilema u vezi sa dobrobiti je paradoks roditeljskih jata tovnih pilića koja se ne može rešiti dok postoji pritisak za genetski napredak u proizvodnji zbog ekonomske efikasnosti. Sledeći primer dileme je široko rasprostranjena praksa sečenja repa kod prasadi kako bi se smanjio rizik od griže repova. Iako je sečenje repa bolno i može prouzrokovati uginuće, anestezija se obično ne primjenjuje na farmama. Sličan primer dileme je i skraćivanje kljuna kod kokoši nosilja i pojava kljucanja perja u sistemima slobodnog uzgoja. Važno je uočiti razliku između opisanih dilema, gde je jedna premisa suprotstavljena drugoj, što je u suštini konflikt između ciljeva dobrobiti životinja i drugih aspekata, kao što su ekonomska, etička i moralna pitanja. Konačno, postoje i neke dileme koje se odnose na spremnost potrošača da plate višu cenu za proizvode koji su dobijeni u uslovima gajenja koji pospešuju dobrobit farmskih životinja.
PB  - Univerzitet u Beogradu - Poljoprivredni fakultet, Beograd
T2  - Journal of Agricultural Sciences (Belgrade)
T1  - The most important dilemmas regarding the welfare of farm animals
T1  - Najznačajnije dileme koje se odnose na dobrobit farmskih životinja
EP  - 340
IS  - 4
SP  - 319
VL  - 64
DO  - 10.2298/JAS1904319H
ER  - 

@article{
author = "Hristov, Slavča and Stanković, Branislav and Ostojić-Andrić, Dušica and Maksimović, Nevena and Nakov, Dimitar",
year = "2019",
abstract = "In this review paper, contradictions in modern livestock production as dilemmas of farm animal welfare are considered. The main dilemma concerns the question of whether extensive production in small farms is generally better than intensive production in large farms. The next dilemma relates to an intensive selection of animals and its impact on the emergence of welfare problems. Another dilemma is related to the two main interconnected problems of pig welfare in individual farrowing pens: the piglet death by crushing and the sows' movement restriction. Similarly, welfare dilemma is the paradox of parent flocks of broiler line breeding that could not be solved until the pressure for genetic advancement in production is required due to the economic efficiency. The next example of the dilemma is the widespread practice of tail docking in piglets in order to reduce the risk of tail biting. Although the tail docking is painful and may cause death, anaesthesia is usually not applied on farms. A similar example of the dilemma is debeaking in the laying hens and the occurrence of feather pecking in free rearing systems. It is important to notice the difference between the described dilemmas, where one premise opposes the other, which is essentially a conflict between the animal welfare goals and other values, such as economic, ethical and moral issues. Finally, there are also some dilemmas about the consumers' willingness to pay a higher price of products that originate from welfare friendly rearing conditions., U ovom preglednom radu razmatraju se kontradikcije u modernoj stočarskoj proizvodnji kao dileme koje se odnose na dobrobit farmskih životinja. Glavna dilema odnosi se na pitanje da li je ekstenzivna proizvodnja na malim farmama generalno bolja od intenzivne proizvodnje na velikim farmama. Sledeća dilema odnosi se na primenu intenzivne selekcije životinja i njen uticaj na nastanak problema dobrobiti. Naredna dilema se odnosi na dva glavna međusobno povezana problema dobrobiti svinja u pojedinačnim boksovima za prašenje: uginuća prasadi gnječenjem i ograničenje kretanja krmača. Takođe, dilema u vezi sa dobrobiti je paradoks roditeljskih jata tovnih pilića koja se ne može rešiti dok postoji pritisak za genetski napredak u proizvodnji zbog ekonomske efikasnosti. Sledeći primer dileme je široko rasprostranjena praksa sečenja repa kod prasadi kako bi se smanjio rizik od griže repova. Iako je sečenje repa bolno i može prouzrokovati uginuće, anestezija se obično ne primjenjuje na farmama. Sličan primer dileme je i skraćivanje kljuna kod kokoši nosilja i pojava kljucanja perja u sistemima slobodnog uzgoja. Važno je uočiti razliku između opisanih dilema, gde je jedna premisa suprotstavljena drugoj, što je u suštini konflikt između ciljeva dobrobiti životinja i drugih aspekata, kao što su ekonomska, etička i moralna pitanja. Konačno, postoje i neke dileme koje se odnose na spremnost potrošača da plate višu cenu za proizvode koji su dobijeni u uslovima gajenja koji pospešuju dobrobit farmskih životinja.",
publisher = "Univerzitet u Beogradu - Poljoprivredni fakultet, Beograd",
journal = "Journal of Agricultural Sciences (Belgrade)",
title = "The most important dilemmas regarding the welfare of farm animals, Najznačajnije dileme koje se odnose na dobrobit farmskih životinja",
pages = "340-319",
number = "4",
volume = "64",
doi = "10.2298/JAS1904319H"
}

Hristov, S., Stanković, B., Ostojić-Andrić, D., Maksimović, N.,& Nakov, D.. (2019). The most important dilemmas regarding the welfare of farm animals. in Journal of Agricultural Sciences (Belgrade)
Univerzitet u Beogradu - Poljoprivredni fakultet, Beograd., 64(4), 319-340.
https://doi.org/10.2298/JAS1904319H

Hristov S, Stanković B, Ostojić-Andrić D, Maksimović N, Nakov D. The most important dilemmas regarding the welfare of farm animals. in Journal of Agricultural Sciences (Belgrade). 2019;64(4):319-340.
doi:10.2298/JAS1904319H .

Hristov, Slavča, Stanković, Branislav, Ostojić-Andrić, Dušica, Maksimović, Nevena, Nakov, Dimitar, "The most important dilemmas regarding the welfare of farm animals" in Journal of Agricultural Sciences (Belgrade), 64, no. 4 (2019):319-340,
https://doi.org/10.2298/JAS1904319H . .

TY  - JOUR
AU  - Davidović, Vesna
AU  - Jovetić, Branko
AU  - Joksimović-Todorović, Mirjana
AU  - Stojanović, Bojan
AU  - Lazarević, Miodrag
AU  - Perišić, Predrag
AU  - Radivojević, Mihailo
AU  - Maletić, Milan
AU  - Miletić, Aleksandar
PY  - 2019
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/4970
AB  - The aim of this study was to examine the effect of using tannin supplement in ration for mid-lactation dairy cows (90 +/- 17 days in milk) and the number of lactation on metabolic profile parameters values. Additionally, the effect of tannin supplementation on cows' production characteristics in the 2nd lactation was evaluated. Research was conducted on 80 Holstein cows divided into two groups of 40 cows (control and experimental group) that included 16 cows in 2nd and 12 in 3rd and 4th lactation. The tannin supplement Tanimil SCC (40 g/cow/day; 40% of tannins) was added in the total mixed ration (TMR) of experimental group, while the control group of cows was fed ration without the tannin supplement. The trial lasted 60 days. Dairy cows, fed diet supplemented with tannin, had markedly lower values (P lt 0.05) of B-hydroxybutyrate concentration (0.79 vs. 0.96 mmol/L) and lower blood urea concentration (5.89 vs. 6.93 mmol/L). Difference in the blood glucose concentrations (3.92 vs. 3.89 mmol/L) was not significant. The lactation number had no significant effect on values of metabolic profile parameters (concentration of glucose, B-hydroxybutyrate and urea). The effect of interaction of lactation number and tannin supplement on the values of examined parameters of metabolic profile was not significant. Supplementation of tannin in the diet for cows in the second lactation, had a positive effect (P lt 0.05) on the milk yield (4.42%) and yield of 4% fat corrected milk (FCM, 5.24%). The use of tannin, improved concentration (3.20 vs. 3.12%) and yield (from 1.16 to 1.24 kg/day) of milk protein (P lt 0.05). Addition of tannin also improved concentration and yield of milk fat, as well as the concentration of lactose. The supplementation of Tanimil SCC to mid-lactation dairy cows had a positive impacts on reduction of blood content of B-hydroxybutyrate and urea, and improved productive performances of cows in the second lactation.
PB  - Univ Ljubljana, Veterinary Faculty, Ljubljana
T2  - Slovenian Veterinary Research
T1  - The effect of tannin supplementation of mid-lactation dairy cows diets on metabolic profile parameters and production characteristics
EP  - 151
IS  - 4
SP  - 143
VL  - 56
DO  - 10.26873/SVR-552-2019
ER  - 

@article{
author = "Davidović, Vesna and Jovetić, Branko and Joksimović-Todorović, Mirjana and Stojanović, Bojan and Lazarević, Miodrag and Perišić, Predrag and Radivojević, Mihailo and Maletić, Milan and Miletić, Aleksandar",
year = "2019",
abstract = "The aim of this study was to examine the effect of using tannin supplement in ration for mid-lactation dairy cows (90 +/- 17 days in milk) and the number of lactation on metabolic profile parameters values. Additionally, the effect of tannin supplementation on cows' production characteristics in the 2nd lactation was evaluated. Research was conducted on 80 Holstein cows divided into two groups of 40 cows (control and experimental group) that included 16 cows in 2nd and 12 in 3rd and 4th lactation. The tannin supplement Tanimil SCC (40 g/cow/day; 40% of tannins) was added in the total mixed ration (TMR) of experimental group, while the control group of cows was fed ration without the tannin supplement. The trial lasted 60 days. Dairy cows, fed diet supplemented with tannin, had markedly lower values (P lt 0.05) of B-hydroxybutyrate concentration (0.79 vs. 0.96 mmol/L) and lower blood urea concentration (5.89 vs. 6.93 mmol/L). Difference in the blood glucose concentrations (3.92 vs. 3.89 mmol/L) was not significant. The lactation number had no significant effect on values of metabolic profile parameters (concentration of glucose, B-hydroxybutyrate and urea). The effect of interaction of lactation number and tannin supplement on the values of examined parameters of metabolic profile was not significant. Supplementation of tannin in the diet for cows in the second lactation, had a positive effect (P lt 0.05) on the milk yield (4.42%) and yield of 4% fat corrected milk (FCM, 5.24%). The use of tannin, improved concentration (3.20 vs. 3.12%) and yield (from 1.16 to 1.24 kg/day) of milk protein (P lt 0.05). Addition of tannin also improved concentration and yield of milk fat, as well as the concentration of lactose. The supplementation of Tanimil SCC to mid-lactation dairy cows had a positive impacts on reduction of blood content of B-hydroxybutyrate and urea, and improved productive performances of cows in the second lactation.",
publisher = "Univ Ljubljana, Veterinary Faculty, Ljubljana",
journal = "Slovenian Veterinary Research",
title = "The effect of tannin supplementation of mid-lactation dairy cows diets on metabolic profile parameters and production characteristics",
pages = "151-143",
number = "4",
volume = "56",
doi = "10.26873/SVR-552-2019"
}

Davidović, V., Jovetić, B., Joksimović-Todorović, M., Stojanović, B., Lazarević, M., Perišić, P., Radivojević, M., Maletić, M.,& Miletić, A.. (2019). The effect of tannin supplementation of mid-lactation dairy cows diets on metabolic profile parameters and production characteristics. in Slovenian Veterinary Research
Univ Ljubljana, Veterinary Faculty, Ljubljana., 56(4), 143-151.
https://doi.org/10.26873/SVR-552-2019

Davidović V, Jovetić B, Joksimović-Todorović M, Stojanović B, Lazarević M, Perišić P, Radivojević M, Maletić M, Miletić A. The effect of tannin supplementation of mid-lactation dairy cows diets on metabolic profile parameters and production characteristics. in Slovenian Veterinary Research. 2019;56(4):143-151.
doi:10.26873/SVR-552-2019 .

Davidović, Vesna, Jovetić, Branko, Joksimović-Todorović, Mirjana, Stojanović, Bojan, Lazarević, Miodrag, Perišić, Predrag, Radivojević, Mihailo, Maletić, Milan, Miletić, Aleksandar, "The effect of tannin supplementation of mid-lactation dairy cows diets on metabolic profile parameters and production characteristics" in Slovenian Veterinary Research, 56, no. 4 (2019):143-151,
https://doi.org/10.26873/SVR-552-2019 . .

TY  - JOUR
AU  - Stanojević, Dragan
AU  - Djedović, Radica
AU  - Bogdanović, Vladan
AU  - Raguz, Nikola
AU  - Kučević, Denis
AU  - Popovac, Mladen
AU  - Stojić, Petar
AU  - Samolovac, Ljiljana
PY  - 2018
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/4691
AB  - This research was conducted with the aim of estimating genetic trend for a functional length of productive life (FLPL) in the population of Black and White cattle in Serbia. Research and bulls genetic evaluation for functional longevity were performed on a set of data provided by Agricultural Corporation Belgrade AD (PKB) which contained data on longevity and origin of 22109 cows out of which 26% records were right-censored. Functional length of productive life (FPLP) represents a time period from the first calving to culling or censoring corrected for milk production. Breeding values were estimated using Weibull method of proportional risks within survival analysis a genetic trend for FLPL was calculated using of a regression analysis. The cows included in the analysis were on average first calved in the age of 809 days and had an average share of 81.9% genes of Holstein Friesian breed. An average length of productive life was 1267 days (41.6 months). Distribution of bull standardised breeding values did not statistically significantly differ from normal distribution. An average standardised breeding value was 99. A slightly positive genetic trend was determined, that is, the length of functional productive life was by selection increased by 0.021 day at an annual level while a reliability of estimated breeding values showed a negative trend.
PB  - Društvo genetičara Srbije, Beograd
T2  - Genetika
T1  - Genetic trend of functional productive life in the population of black and white cattle in Serbia
EP  - 862
IS  - 3
SP  - 855
VL  - 50
DO  - 10.2298/GENSR1803855S
ER  - 

@article{
author = "Stanojević, Dragan and Djedović, Radica and Bogdanović, Vladan and Raguz, Nikola and Kučević, Denis and Popovac, Mladen and Stojić, Petar and Samolovac, Ljiljana",
year = "2018",
abstract = "This research was conducted with the aim of estimating genetic trend for a functional length of productive life (FLPL) in the population of Black and White cattle in Serbia. Research and bulls genetic evaluation for functional longevity were performed on a set of data provided by Agricultural Corporation Belgrade AD (PKB) which contained data on longevity and origin of 22109 cows out of which 26% records were right-censored. Functional length of productive life (FPLP) represents a time period from the first calving to culling or censoring corrected for milk production. Breeding values were estimated using Weibull method of proportional risks within survival analysis a genetic trend for FLPL was calculated using of a regression analysis. The cows included in the analysis were on average first calved in the age of 809 days and had an average share of 81.9% genes of Holstein Friesian breed. An average length of productive life was 1267 days (41.6 months). Distribution of bull standardised breeding values did not statistically significantly differ from normal distribution. An average standardised breeding value was 99. A slightly positive genetic trend was determined, that is, the length of functional productive life was by selection increased by 0.021 day at an annual level while a reliability of estimated breeding values showed a negative trend.",
publisher = "Društvo genetičara Srbije, Beograd",
journal = "Genetika",
title = "Genetic trend of functional productive life in the population of black and white cattle in Serbia",
pages = "862-855",
number = "3",
volume = "50",
doi = "10.2298/GENSR1803855S"
}

Stanojević, D., Djedović, R., Bogdanović, V., Raguz, N., Kučević, D., Popovac, M., Stojić, P.,& Samolovac, L.. (2018). Genetic trend of functional productive life in the population of black and white cattle in Serbia. in Genetika
Društvo genetičara Srbije, Beograd., 50(3), 855-862.
https://doi.org/10.2298/GENSR1803855S

Stanojević D, Djedović R, Bogdanović V, Raguz N, Kučević D, Popovac M, Stojić P, Samolovac L. Genetic trend of functional productive life in the population of black and white cattle in Serbia. in Genetika. 2018;50(3):855-862.
doi:10.2298/GENSR1803855S .

Stanojević, Dragan, Djedović, Radica, Bogdanović, Vladan, Raguz, Nikola, Kučević, Denis, Popovac, Mladen, Stojić, Petar, Samolovac, Ljiljana, "Genetic trend of functional productive life in the population of black and white cattle in Serbia" in Genetika, 50, no. 3 (2018):855-862,
https://doi.org/10.2298/GENSR1803855S . .

TY  - JOUR
AU  - Stojanović, Bojan
AU  - Simić, Aleksandar
AU  - Grubić, Goran
AU  - Božičković, Aleksa
AU  - Krga, Ivan
PY  - 2018
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/4864
AB  - A cutting experiment was conducted to test the changes in botanical composition, yield and nutritional value of forage, obtained in conditions of simulated rotational spring grazing on permanent grassland. The experiment was carried out on permanent pasture in vicinity of Šabac, Serbia in 2015 included three cuttings as a simulated rotational spring grazing. The highest share of grasses was noted in the first cut and decreased in the second and third cut, with increased forbs participation, and relatively constant percentage of legumes. The highest dry matter (DM) yield was obtained for the first harvest, followed by the second cut, and the lowest forage production was determined for the third harvest, with only 11.04 and 17.42% of the first and second cut yield. There were not found the significant differences between cuts for herbage DM and crude protein content. Markedly lower value for non-protein N concentration (p lt 0.05) was determined in the third cut. The fiber content increased during the grazing season (p lt 0.05), with the highest value determined in the herbage obtained in the second cut. The highest energy values (p lt 0.05) had the herbage produced in the first cut (DM basis), wherein the lowest values were found in the forage from the second harvest. These results indicate that especially herbage yield of analyzed grassland as chemical composition and nutrition value are highly variable during the growing season. The accurately defined optimal period for using is necessary to provide the high-quality forage for grazing animals.
AB  - Istraživanje u kome je košenjem simulirana pregonska ispaša, sprovedeno je u cilju utvrđivanja razlika u botaničkom sastavu, prinosu i hranljivoj vrednosti dobijene zelene mase sa permanentnog pašnjaka, tokom prolećne sezone. Eksperiment je izveden tokom 2015. godine na prirodnom pašnjaku u okolini Šapca, Srbija i uključivao je tri otkosa kao simulaciju pregonske prolećne ispaše. Najveći udeo trava je zabeležen u prvom otkosu, dok je zastupljenost trava u drugom i trećem otkosu bila smanjena, uz istovremeno povećanje učešća zeljanica, i relativno ujednačen udeo leguminoza po ciklusima iskorišćavanja. Najveći prinos suve materije (SM) je utvrđen u prvom ciklusu iskorišćavanja, zatim u drugom, dok je najmanja produkcija zelene mase izmerena u trećem otkosu, samo 11,04 i 17,42% prinosa u prvom odnosno drugom otkosu. Nisu nađene značajne razlike između ciklusa iskorišćavanja u pogledu sadržaja SM i sirovih proteina. Značajno manje učešće neproteinskog N (p lt 0,05) je utvrđeno u biljnoj masi dobijenoj iz trećeg otkosa. Determinisano je povećanje sadržaja vlakana (p lt 0,05) u SM biljne mase, tokom pašne sezone, pri čemu su najveće vrednosti utvrđene u drugom otkosu. Najveću energetsku vrednost (p lt 0,05) imala je zelena krma iz prvog otkosa (u SM), pri čemu je najniži sadržaj iskoristive energije utvrđen u zelenoj masi dobijenoj iz drugog ciklusa iskorišćavanja. Rezultati do kojih se došlo, ukazuju na naročito izraženo variranje prinosa, kao i hemijskog sastava i hranljive vrednosti zelene mase sa permanentnog pašnjaka, tokom prolećne sezone porasta vegetacije. U skladu sa tim, u cilju dobijanja kvalitetne paše za ishranu životinja, neophodno je precizno definisanje optimalnog perioda za iskorišćavanje pašnjaka tokom sezone ispaše.
PB  - Institut za stočarstvo, Beograd
T2  - Biotechnology in Animal Husbandry
T1  - Yield and nutritional value of permanent grassland forage under simulated rotational grazing
T1  - Prinos i hranljiva vrednost zelene mase sa permanentnog travnjaka u uslovima simulacije prolećne ispaše
EP  - 31
IS  - 1
SP  - 21
VL  - 34
DO  - 10.2298/bah1801021S
ER  - 

@article{
author = "Stojanović, Bojan and Simić, Aleksandar and Grubić, Goran and Božičković, Aleksa and Krga, Ivan",
year = "2018",
abstract = "A cutting experiment was conducted to test the changes in botanical composition, yield and nutritional value of forage, obtained in conditions of simulated rotational spring grazing on permanent grassland. The experiment was carried out on permanent pasture in vicinity of Šabac, Serbia in 2015 included three cuttings as a simulated rotational spring grazing. The highest share of grasses was noted in the first cut and decreased in the second and third cut, with increased forbs participation, and relatively constant percentage of legumes. The highest dry matter (DM) yield was obtained for the first harvest, followed by the second cut, and the lowest forage production was determined for the third harvest, with only 11.04 and 17.42% of the first and second cut yield. There were not found the significant differences between cuts for herbage DM and crude protein content. Markedly lower value for non-protein N concentration (p lt 0.05) was determined in the third cut. The fiber content increased during the grazing season (p lt 0.05), with the highest value determined in the herbage obtained in the second cut. The highest energy values (p lt 0.05) had the herbage produced in the first cut (DM basis), wherein the lowest values were found in the forage from the second harvest. These results indicate that especially herbage yield of analyzed grassland as chemical composition and nutrition value are highly variable during the growing season. The accurately defined optimal period for using is necessary to provide the high-quality forage for grazing animals., Istraživanje u kome je košenjem simulirana pregonska ispaša, sprovedeno je u cilju utvrđivanja razlika u botaničkom sastavu, prinosu i hranljivoj vrednosti dobijene zelene mase sa permanentnog pašnjaka, tokom prolećne sezone. Eksperiment je izveden tokom 2015. godine na prirodnom pašnjaku u okolini Šapca, Srbija i uključivao je tri otkosa kao simulaciju pregonske prolećne ispaše. Najveći udeo trava je zabeležen u prvom otkosu, dok je zastupljenost trava u drugom i trećem otkosu bila smanjena, uz istovremeno povećanje učešća zeljanica, i relativno ujednačen udeo leguminoza po ciklusima iskorišćavanja. Najveći prinos suve materije (SM) je utvrđen u prvom ciklusu iskorišćavanja, zatim u drugom, dok je najmanja produkcija zelene mase izmerena u trećem otkosu, samo 11,04 i 17,42% prinosa u prvom odnosno drugom otkosu. Nisu nađene značajne razlike između ciklusa iskorišćavanja u pogledu sadržaja SM i sirovih proteina. Značajno manje učešće neproteinskog N (p lt 0,05) je utvrđeno u biljnoj masi dobijenoj iz trećeg otkosa. Determinisano je povećanje sadržaja vlakana (p lt 0,05) u SM biljne mase, tokom pašne sezone, pri čemu su najveće vrednosti utvrđene u drugom otkosu. Najveću energetsku vrednost (p lt 0,05) imala je zelena krma iz prvog otkosa (u SM), pri čemu je najniži sadržaj iskoristive energije utvrđen u zelenoj masi dobijenoj iz drugog ciklusa iskorišćavanja. Rezultati do kojih se došlo, ukazuju na naročito izraženo variranje prinosa, kao i hemijskog sastava i hranljive vrednosti zelene mase sa permanentnog pašnjaka, tokom prolećne sezone porasta vegetacije. U skladu sa tim, u cilju dobijanja kvalitetne paše za ishranu životinja, neophodno je precizno definisanje optimalnog perioda za iskorišćavanje pašnjaka tokom sezone ispaše.",
publisher = "Institut za stočarstvo, Beograd",
journal = "Biotechnology in Animal Husbandry",
title = "Yield and nutritional value of permanent grassland forage under simulated rotational grazing, Prinos i hranljiva vrednost zelene mase sa permanentnog travnjaka u uslovima simulacije prolećne ispaše",
pages = "31-21",
number = "1",
volume = "34",
doi = "10.2298/bah1801021S"
}

Stojanović, B., Simić, A., Grubić, G., Božičković, A.,& Krga, I.. (2018). Yield and nutritional value of permanent grassland forage under simulated rotational grazing. in Biotechnology in Animal Husbandry
Institut za stočarstvo, Beograd., 34(1), 21-31.
https://doi.org/10.2298/bah1801021S

Stojanović B, Simić A, Grubić G, Božičković A, Krga I. Yield and nutritional value of permanent grassland forage under simulated rotational grazing. in Biotechnology in Animal Husbandry. 2018;34(1):21-31.
doi:10.2298/bah1801021S .

Stojanović, Bojan, Simić, Aleksandar, Grubić, Goran, Božičković, Aleksa, Krga, Ivan, "Yield and nutritional value of permanent grassland forage under simulated rotational grazing" in Biotechnology in Animal Husbandry, 34, no. 1 (2018):21-31,
https://doi.org/10.2298/bah1801021S . .

TY  - CONF
AU  - Petrović, Milun
AU  - Bogdanović, Vladan
AU  - Djedović, Radica
AU  - Bogosavljević-Bošković, Snežana
AU  - Rakonjac, Simeon
AU  - Djoković, Radojica
AU  - Petrović, Miloš
PY  - 2017
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/5634
AB  - In scientific literature, fertility is generally assessed through age at first conception, gestation length, length of service period, calving interval, and calf birth weight.
Determination of the effect of particular non-genetic factors on the above traits is a vital step in cattle breeding and reproduction. 
Length of calving interval is largely governed by the effect of non-genetic factors, viz. fixed effects generally including the effect of breeding region, season of birth, calving season, year of birth, calf sex and their interactions, and continuous or regression effects including age at first conception or age at calving. 
The effect of fixed and continuous non-genetic factors on length of calving period was analysed in 245 Simmental cows (907 calving interval) in three breeding regions, with the effect of season of birth as a fixed factor and cow age at first conception as a continuous factor being highly significant (P  lt  0.01), and that of season of calving being significant (P  lt  0.05). The effect of breeding region, year of birth, parity group or age and calf sex was statistically non-significant (P > 0.05).
AB  - U literaturi plodnost se najčešće posmatra preko uzrasta pri prvoj oplodnji, trajanja bremenitosti, servis perioda, intervala između telenja i mase teladi pri rođenju. 
Determinisanje uticaja pojedinih sistematskih faktora na pomenute osobine od velike je važnosti u procesu odgajivanja i reprodukcije goveda.
Dužina intervala između telenja definisana je najvećim delom dejstvom paragenetskih faktora, od kojih kao fiksni uticaji najčešće se pominju uticaj odgajivačkog područja, sezone rođenja i telenja, godine rođenja, pola teladi i njihove interakcije, a od kontinuelnih ili regresijskih uzrast krava pri prvoj oplodnji ili telenju.
Analiza uticaja fiksnih i kontinuiranih negenetskih faktora na dužinu odnosno trajanje intervala između telenja izvršena je kod 245 krava (907 međutelidbenih intervala) simentalske rase raspoređenih na tri odgajivačka područja pri čemu je uticaj sezone rođenja kao fiksnog i uzrasta krava pri prvoj oplodnji kao kontinuiranog faktora bio visoko značajan (P lt 0.01) dok je uticaj sezone telenja na dužinu međutelidbenog intervala bio značajan.(P lt 0.05). Uticaj  odgajivačkog područja, godine rođenja, grupe partusa odnosno starosti kao i pola teladi nije bio statistički značajan (P>0.05).
C3  - 22. Savetovanje o biotehnologiji sa međunarodnim učešćem, Čačak, 10.-11. 03. 2017.
T1  - Effect of Paragenetic Factors on the Intensity of Fertility in Simmental Cows
T1  - Uticaj paragenetskih faktora na intenzitet plodnosti kod krava simentalske rase
UR  - https://hdl.handle.net/21.15107/rcub_agrospace_5634
ER  - 

@conference{
author = "Petrović, Milun and Bogdanović, Vladan and Djedović, Radica and Bogosavljević-Bošković, Snežana and Rakonjac, Simeon and Djoković, Radojica and Petrović, Miloš",
year = "2017",
abstract = "In scientific literature, fertility is generally assessed through age at first conception, gestation length, length of service period, calving interval, and calf birth weight.
Determination of the effect of particular non-genetic factors on the above traits is a vital step in cattle breeding and reproduction. 
Length of calving interval is largely governed by the effect of non-genetic factors, viz. fixed effects generally including the effect of breeding region, season of birth, calving season, year of birth, calf sex and their interactions, and continuous or regression effects including age at first conception or age at calving. 
The effect of fixed and continuous non-genetic factors on length of calving period was analysed in 245 Simmental cows (907 calving interval) in three breeding regions, with the effect of season of birth as a fixed factor and cow age at first conception as a continuous factor being highly significant (P  lt  0.01), and that of season of calving being significant (P  lt  0.05). The effect of breeding region, year of birth, parity group or age and calf sex was statistically non-significant (P > 0.05)., U literaturi plodnost se najčešće posmatra preko uzrasta pri prvoj oplodnji, trajanja bremenitosti, servis perioda, intervala između telenja i mase teladi pri rođenju. 
Determinisanje uticaja pojedinih sistematskih faktora na pomenute osobine od velike je važnosti u procesu odgajivanja i reprodukcije goveda.
Dužina intervala između telenja definisana je najvećim delom dejstvom paragenetskih faktora, od kojih kao fiksni uticaji najčešće se pominju uticaj odgajivačkog područja, sezone rođenja i telenja, godine rođenja, pola teladi i njihove interakcije, a od kontinuelnih ili regresijskih uzrast krava pri prvoj oplodnji ili telenju.
Analiza uticaja fiksnih i kontinuiranih negenetskih faktora na dužinu odnosno trajanje intervala između telenja izvršena je kod 245 krava (907 međutelidbenih intervala) simentalske rase raspoređenih na tri odgajivačka područja pri čemu je uticaj sezone rođenja kao fiksnog i uzrasta krava pri prvoj oplodnji kao kontinuiranog faktora bio visoko značajan (P lt 0.01) dok je uticaj sezone telenja na dužinu međutelidbenog intervala bio značajan.(P lt 0.05). Uticaj  odgajivačkog područja, godine rođenja, grupe partusa odnosno starosti kao i pola teladi nije bio statistički značajan (P>0.05).",
journal = "22. Savetovanje o biotehnologiji sa međunarodnim učešćem, Čačak, 10.-11. 03. 2017.",
title = "Effect of Paragenetic Factors on the Intensity of Fertility in Simmental Cows, Uticaj paragenetskih faktora na intenzitet plodnosti kod krava simentalske rase",
url = "https://hdl.handle.net/21.15107/rcub_agrospace_5634"
}

Petrović, M., Bogdanović, V., Djedović, R., Bogosavljević-Bošković, S., Rakonjac, S., Djoković, R.,& Petrović, M.. (2017). Effect of Paragenetic Factors on the Intensity of Fertility in Simmental Cows. in 22. Savetovanje o biotehnologiji sa međunarodnim učešćem, Čačak, 10.-11. 03. 2017..
https://hdl.handle.net/21.15107/rcub_agrospace_5634

Petrović M, Bogdanović V, Djedović R, Bogosavljević-Bošković S, Rakonjac S, Djoković R, Petrović M. Effect of Paragenetic Factors on the Intensity of Fertility in Simmental Cows. in 22. Savetovanje o biotehnologiji sa međunarodnim učešćem, Čačak, 10.-11. 03. 2017.. 2017;.
https://hdl.handle.net/21.15107/rcub_agrospace_5634 .

Petrović, Milun, Bogdanović, Vladan, Djedović, Radica, Bogosavljević-Bošković, Snežana, Rakonjac, Simeon, Djoković, Radojica, Petrović, Miloš, "Effect of Paragenetic Factors on the Intensity of Fertility in Simmental Cows" in 22. Savetovanje o biotehnologiji sa međunarodnim učešćem, Čačak, 10.-11. 03. 2017. (2017),
https://hdl.handle.net/21.15107/rcub_agrospace_5634 .

TY  - JOUR
AU  - Djedović, Radica
AU  - Bogdanović, Vladan
AU  - Stanojević, Dragan
AU  - Nemes, Zsolt
AU  - Gaspardy, Andras
AU  - Cseh, Sandor
PY  - 2016
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/4039
AB  - The objective of this study was to compare the reproductive traits of heifers and the development characteristics of their calves following artificial insemination (AI) with sexed and non-sexed semen. The analysed characteristics included conception rate, gestation length, calf birth weight, calf vigour, stillbirth rate, and twinning rate. Data of 530 calves produced with sexed and 1,163 calves produced with non-sexed semen were analysed. The General Linear Model (GLM) was applied to assess the influence of semen type, farm, season of insemination, the calf's sex and the inseminating sire on gestation length and calf birth weight. With the exception of gestation length (P > 0.05), all other traits studied were significantly (P  lt  0.01) influenced by the type of semen. The conception rate was 55% for conventional and 44% for sexed semen, and the average gestation length was 274.6 and 274.9 days, respectively. The mean calf birth weight was 37.47 kg for non-sexed and 36.75 kg for sexed semen. The stillbirth rate was 6.19% for conventional and 7.54% for sexed semen, while the twinning rate was 3.78% for conventional and 1.13% for sexed semen. The calves produced with non-sexed and sexed semen differed significantly in viability (P  lt  0.001), the latter having a lower calf vigour score. The use of conventional semen did not affect the ratio of female and male calves (52.7:47.3%; P > 0.05); however, artificial insemination with X-sorted sexed semen significantly altered the sex ratio of calves (85.1:14.9%, P  lt  0.01). The results obtained in this investigation are in agreement with the majority of studies which compared the fertility traits, sex ratio and calf characteristics depending on the application of artificial insemination with sexed or conventional semen.
PB  - Akademiai Kiado Rt, Budapest
T2  - Acta Veterinaria Hungarica
T1  - Involuntary reduction in vigour of calves born from sexed semen
EP  - 238
IS  - 2
SP  - 229
VL  - 64
DO  - 10.1556/004.2016.023
ER  - 

@article{
author = "Djedović, Radica and Bogdanović, Vladan and Stanojević, Dragan and Nemes, Zsolt and Gaspardy, Andras and Cseh, Sandor",
year = "2016",
abstract = "The objective of this study was to compare the reproductive traits of heifers and the development characteristics of their calves following artificial insemination (AI) with sexed and non-sexed semen. The analysed characteristics included conception rate, gestation length, calf birth weight, calf vigour, stillbirth rate, and twinning rate. Data of 530 calves produced with sexed and 1,163 calves produced with non-sexed semen were analysed. The General Linear Model (GLM) was applied to assess the influence of semen type, farm, season of insemination, the calf's sex and the inseminating sire on gestation length and calf birth weight. With the exception of gestation length (P > 0.05), all other traits studied were significantly (P  lt  0.01) influenced by the type of semen. The conception rate was 55% for conventional and 44% for sexed semen, and the average gestation length was 274.6 and 274.9 days, respectively. The mean calf birth weight was 37.47 kg for non-sexed and 36.75 kg for sexed semen. The stillbirth rate was 6.19% for conventional and 7.54% for sexed semen, while the twinning rate was 3.78% for conventional and 1.13% for sexed semen. The calves produced with non-sexed and sexed semen differed significantly in viability (P  lt  0.001), the latter having a lower calf vigour score. The use of conventional semen did not affect the ratio of female and male calves (52.7:47.3%; P > 0.05); however, artificial insemination with X-sorted sexed semen significantly altered the sex ratio of calves (85.1:14.9%, P  lt  0.01). The results obtained in this investigation are in agreement with the majority of studies which compared the fertility traits, sex ratio and calf characteristics depending on the application of artificial insemination with sexed or conventional semen.",
publisher = "Akademiai Kiado Rt, Budapest",
journal = "Acta Veterinaria Hungarica",
title = "Involuntary reduction in vigour of calves born from sexed semen",
pages = "238-229",
number = "2",
volume = "64",
doi = "10.1556/004.2016.023"
}

Djedović, R., Bogdanović, V., Stanojević, D., Nemes, Z., Gaspardy, A.,& Cseh, S.. (2016). Involuntary reduction in vigour of calves born from sexed semen. in Acta Veterinaria Hungarica
Akademiai Kiado Rt, Budapest., 64(2), 229-238.
https://doi.org/10.1556/004.2016.023

Djedović R, Bogdanović V, Stanojević D, Nemes Z, Gaspardy A, Cseh S. Involuntary reduction in vigour of calves born from sexed semen. in Acta Veterinaria Hungarica. 2016;64(2):229-238.
doi:10.1556/004.2016.023 .

Djedović, Radica, Bogdanović, Vladan, Stanojević, Dragan, Nemes, Zsolt, Gaspardy, Andras, Cseh, Sandor, "Involuntary reduction in vigour of calves born from sexed semen" in Acta Veterinaria Hungarica, 64, no. 2 (2016):229-238,
https://doi.org/10.1556/004.2016.023 . .

TY  - JOUR
AU  - Stanojević, Dragan
AU  - Djedović, Radica
AU  - Bogdanović, Vladan
AU  - Raguz, Nikola
AU  - Popovac, Mladen
AU  - Janković, Dobrila
AU  - Strbac, Ljuba
PY  - 2016
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/4064
AB  - Assessment of the heritability coefficients of longevity traits in the population of Black and White cows was performed on a data set that included production results of 16,539 of black and white culled cows, which reached a total of 50,382 lactations in the period from 1985 to 2012. The cows were grown on 7 farms of the Agricultural Corporation Belgrade and are progeny of 277 bulls. The analysis covered the following traits: length of productive life (LPL), lifetime milk yield (LMY) and number of lactations (NL). Variance components of longevity traits were estimated using a BLUP linear mixed model with animal as a random effect. Cows included in the analysis calved for the first time in the average age of 26.86 months, while the average length of productive life amounted to 1,299.9 days and during that time the animals achieved an average of 3.04 lactations and life time production of 21,016 kg of milk. The values of the heritability coefficients of longevity traits ranged from 0.066; 0.061 and 0.074 regarding the length of productive life, lifetime milk yield and number of lactations respectively.
PB  - Croatian Dairy Union, Zagreb
T2  - Mljekarstvo
T1  - Evaluation of the heritability coefficients of longevity in the population of Black and White cows in Serbia
EP  - 329
IS  - 4
SP  - 322
VL  - 66
DO  - 10.15567/mljekarstvo.2016.0408
ER  - 

@article{
author = "Stanojević, Dragan and Djedović, Radica and Bogdanović, Vladan and Raguz, Nikola and Popovac, Mladen and Janković, Dobrila and Strbac, Ljuba",
year = "2016",
abstract = "Assessment of the heritability coefficients of longevity traits in the population of Black and White cows was performed on a data set that included production results of 16,539 of black and white culled cows, which reached a total of 50,382 lactations in the period from 1985 to 2012. The cows were grown on 7 farms of the Agricultural Corporation Belgrade and are progeny of 277 bulls. The analysis covered the following traits: length of productive life (LPL), lifetime milk yield (LMY) and number of lactations (NL). Variance components of longevity traits were estimated using a BLUP linear mixed model with animal as a random effect. Cows included in the analysis calved for the first time in the average age of 26.86 months, while the average length of productive life amounted to 1,299.9 days and during that time the animals achieved an average of 3.04 lactations and life time production of 21,016 kg of milk. The values of the heritability coefficients of longevity traits ranged from 0.066; 0.061 and 0.074 regarding the length of productive life, lifetime milk yield and number of lactations respectively.",
publisher = "Croatian Dairy Union, Zagreb",
journal = "Mljekarstvo",
title = "Evaluation of the heritability coefficients of longevity in the population of Black and White cows in Serbia",
pages = "329-322",
number = "4",
volume = "66",
doi = "10.15567/mljekarstvo.2016.0408"
}

Stanojević, D., Djedović, R., Bogdanović, V., Raguz, N., Popovac, M., Janković, D.,& Strbac, L.. (2016). Evaluation of the heritability coefficients of longevity in the population of Black and White cows in Serbia. in Mljekarstvo
Croatian Dairy Union, Zagreb., 66(4), 322-329.
https://doi.org/10.15567/mljekarstvo.2016.0408

Stanojević D, Djedović R, Bogdanović V, Raguz N, Popovac M, Janković D, Strbac L. Evaluation of the heritability coefficients of longevity in the population of Black and White cows in Serbia. in Mljekarstvo. 2016;66(4):322-329.
doi:10.15567/mljekarstvo.2016.0408 .

Stanojević, Dragan, Djedović, Radica, Bogdanović, Vladan, Raguz, Nikola, Popovac, Mladen, Janković, Dobrila, Strbac, Ljuba, "Evaluation of the heritability coefficients of longevity in the population of Black and White cows in Serbia" in Mljekarstvo, 66, no. 4 (2016):322-329,
https://doi.org/10.15567/mljekarstvo.2016.0408 . .

TY  - JOUR
AU  - Kučević, Denis
AU  - Trivunović, Snežana
AU  - Bogdanović, Vladan
AU  - Čobanović, Ksenija
AU  - Janković, Dobrila
AU  - Stanojević, Dragan
PY  - 2016
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/4254
AB  - Possible differences between composition of raw milk due to dairy farming system (organic vs conventional) as well as seasonal variations were investigated. The samples were analysed during one year. A total of 6.782 samples of raw milk were collected (4.496 from organic farming). Dairy farms were located in the northern part of Republic of Serbia (Province of Vojvodina). The principle of analysis of raw milk samples was in accordance with the methodology by midinfrared spectrometry and flow cytometry. The fixed effect of system of farming and season (winter, spring, summer and fall) have shown a high statistical significance (P  lt  0.01) on all examined milk parameters except fat, total solids and somatic cell count, where the impact was slightly lower (P  lt  0.05). Significant difference wasn't found in number of bacterial colonies (P > 0.05). Composition of milk is also affected by a number of other factors, therefore it is recommended to involve factors such as nutrition of dairy cows, breed and farm management.
AB  - Cilj rada je bio da se ispitaju razlike između sirovog mleka dobijenog u različitim sezonama i sistemima proizvodnje (organska/ konvencionalna). Uzorci mleka su sakupljani u toku čitave godine. Ukupno je sakupljeno 6782 (od čega 4496 iz organske proizvodnje). Farme su bile locirane na severnom delu Srbije (AP Vojvodina). Sirovi uzorci mleka su analizirani u skladu sa metodologijom infracrvene spektometrije i protočne citometrije. Fiksni uticaji sistema proizvodnje i sezone (zima, proleće, leto i jesen) su pokazali visoku signifikantnu značajnost (P  lt  0,01) na sve ispitivane parametre mleka osim na mlečnu mast, ukupnu suvu materiju i ukupan broj somatskih ćelija, gde je uticaj bio signifikantan na nivou (P  lt  0,05). Statistički značajna razlika nije pronađena u ukupnom broju bakterija (kolonija) (P > 0,05). Na sastav mleka takođe utiče i veliki broj drugih faktora, stoga je za preporuku da se u ispitivanje uključe i faktori poput ishrane mlečnih krava, rase i farmskog menadžmenta.
PB  - Institut za stočarstvo, Beograd
T2  - Biotechnology in Animal Husbandry
T1  - Composition of raw milk from conventional and organic dairy farming
T1  - Sastav sirovog mleka dobijen u sistemu konvencionalne i organske proizvodnje
EP  - 143
IS  - 2
SP  - 133
VL  - 32
DO  - 10.2298/BAH1602133K
ER  - 

@article{
author = "Kučević, Denis and Trivunović, Snežana and Bogdanović, Vladan and Čobanović, Ksenija and Janković, Dobrila and Stanojević, Dragan",
year = "2016",
abstract = "Possible differences between composition of raw milk due to dairy farming system (organic vs conventional) as well as seasonal variations were investigated. The samples were analysed during one year. A total of 6.782 samples of raw milk were collected (4.496 from organic farming). Dairy farms were located in the northern part of Republic of Serbia (Province of Vojvodina). The principle of analysis of raw milk samples was in accordance with the methodology by midinfrared spectrometry and flow cytometry. The fixed effect of system of farming and season (winter, spring, summer and fall) have shown a high statistical significance (P  lt  0.01) on all examined milk parameters except fat, total solids and somatic cell count, where the impact was slightly lower (P  lt  0.05). Significant difference wasn't found in number of bacterial colonies (P > 0.05). Composition of milk is also affected by a number of other factors, therefore it is recommended to involve factors such as nutrition of dairy cows, breed and farm management., Cilj rada je bio da se ispitaju razlike između sirovog mleka dobijenog u različitim sezonama i sistemima proizvodnje (organska/ konvencionalna). Uzorci mleka su sakupljani u toku čitave godine. Ukupno je sakupljeno 6782 (od čega 4496 iz organske proizvodnje). Farme su bile locirane na severnom delu Srbije (AP Vojvodina). Sirovi uzorci mleka su analizirani u skladu sa metodologijom infracrvene spektometrije i protočne citometrije. Fiksni uticaji sistema proizvodnje i sezone (zima, proleće, leto i jesen) su pokazali visoku signifikantnu značajnost (P  lt  0,01) na sve ispitivane parametre mleka osim na mlečnu mast, ukupnu suvu materiju i ukupan broj somatskih ćelija, gde je uticaj bio signifikantan na nivou (P  lt  0,05). Statistički značajna razlika nije pronađena u ukupnom broju bakterija (kolonija) (P > 0,05). Na sastav mleka takođe utiče i veliki broj drugih faktora, stoga je za preporuku da se u ispitivanje uključe i faktori poput ishrane mlečnih krava, rase i farmskog menadžmenta.",
publisher = "Institut za stočarstvo, Beograd",
journal = "Biotechnology in Animal Husbandry",
title = "Composition of raw milk from conventional and organic dairy farming, Sastav sirovog mleka dobijen u sistemu konvencionalne i organske proizvodnje",
pages = "143-133",
number = "2",
volume = "32",
doi = "10.2298/BAH1602133K"
}

Kučević, D., Trivunović, S., Bogdanović, V., Čobanović, K., Janković, D.,& Stanojević, D.. (2016). Composition of raw milk from conventional and organic dairy farming. in Biotechnology in Animal Husbandry
Institut za stočarstvo, Beograd., 32(2), 133-143.
https://doi.org/10.2298/BAH1602133K

Kučević D, Trivunović S, Bogdanović V, Čobanović K, Janković D, Stanojević D. Composition of raw milk from conventional and organic dairy farming. in Biotechnology in Animal Husbandry. 2016;32(2):133-143.
doi:10.2298/BAH1602133K .

Kučević, Denis, Trivunović, Snežana, Bogdanović, Vladan, Čobanović, Ksenija, Janković, Dobrila, Stanojević, Dragan, "Composition of raw milk from conventional and organic dairy farming" in Biotechnology in Animal Husbandry, 32, no. 2 (2016):133-143,
https://doi.org/10.2298/BAH1602133K . .

TY  - JOUR
AU  - Joksimović-Todorović, Mirjana
AU  - Davidović, Vesna
AU  - Bojanić-Rašović, Mirjana
PY  - 2016
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/4253
AB  - Microelements such as selenium, zinc and copper are indispensable nutrients for preserving major physiological functions, improving reproductive characteristics and overall health state. By their adequate use different ailments are prevented, while at the same time they have a positive effect on fertility and resistance. Insufficient quantities of these microelements, inadequate absorption and interaction with other microelements may lead to the impairment of the immune response due to metabolic and oxidative stress. In recent years, mainly organic forms of microelements have been administered to animals because they show better biological availability and can be retained longer in the organism. Besides, organic forms improve quality of products for human nutrition. Antioxidants should be added in optimal quantities in food for dairy cows with the aim of maximizing immune function and protection of tissues.
AB  - Mikroelementi selen, cink i bakar su neophodni nutrijenti za očuvanje osnovnih fizioloških funkcija, zdravlja i poboljšanje reproduktivnih karakteristika. Njihovom adekvatnom primenom preveniraju se različita oboljenja, a istovremeno pozitivno utiče na fertilitet i otpornost. Nedovoljna količina ovih mikroelemenata u obroku, neadekvatna apsorpcija i interakcija sa drugim mikroelementima, mogu dovesti do slabljenja imunskog odgovora usled metaboličkog i oksidativnog stresa. Poslednjih godina, uglavnom se daju organske forme mikroelemenata, jer imaju bolju biološku raspoloživost i duže se zadržavaju u organizmu. Pored toga, organske forme poboljšavaju kvalitet proizvoda namenjenih za ishranu ljudi. Antioksidanse treba dodavati u optimalnim količinama u hranu za mlečne krave u cilju maksimiziranja imunske funkcije i zaštite tkiva.
PB  - Institut za stočarstvo, Beograd
T2  - Biotechnology in Animal Husbandry
T1  - The effects of some microelements supplementation: Selenium, zinc and copper into dairy cows feeds on their health and reproductive performances
T1  - Efekti dodavanja pojedinih mikroelemenata - selena, cinka i bakra u hranu za mlečne krave na zdravlje i reproduktivne performanse
EP  - 110
IS  - 2
SP  - 101
VL  - 32
DO  - 10.2298/BAH1602101J
ER  - 

@article{
author = "Joksimović-Todorović, Mirjana and Davidović, Vesna and Bojanić-Rašović, Mirjana",
year = "2016",
abstract = "Microelements such as selenium, zinc and copper are indispensable nutrients for preserving major physiological functions, improving reproductive characteristics and overall health state. By their adequate use different ailments are prevented, while at the same time they have a positive effect on fertility and resistance. Insufficient quantities of these microelements, inadequate absorption and interaction with other microelements may lead to the impairment of the immune response due to metabolic and oxidative stress. In recent years, mainly organic forms of microelements have been administered to animals because they show better biological availability and can be retained longer in the organism. Besides, organic forms improve quality of products for human nutrition. Antioxidants should be added in optimal quantities in food for dairy cows with the aim of maximizing immune function and protection of tissues., Mikroelementi selen, cink i bakar su neophodni nutrijenti za očuvanje osnovnih fizioloških funkcija, zdravlja i poboljšanje reproduktivnih karakteristika. Njihovom adekvatnom primenom preveniraju se različita oboljenja, a istovremeno pozitivno utiče na fertilitet i otpornost. Nedovoljna količina ovih mikroelemenata u obroku, neadekvatna apsorpcija i interakcija sa drugim mikroelementima, mogu dovesti do slabljenja imunskog odgovora usled metaboličkog i oksidativnog stresa. Poslednjih godina, uglavnom se daju organske forme mikroelemenata, jer imaju bolju biološku raspoloživost i duže se zadržavaju u organizmu. Pored toga, organske forme poboljšavaju kvalitet proizvoda namenjenih za ishranu ljudi. Antioksidanse treba dodavati u optimalnim količinama u hranu za mlečne krave u cilju maksimiziranja imunske funkcije i zaštite tkiva.",
publisher = "Institut za stočarstvo, Beograd",
journal = "Biotechnology in Animal Husbandry",
title = "The effects of some microelements supplementation: Selenium, zinc and copper into dairy cows feeds on their health and reproductive performances, Efekti dodavanja pojedinih mikroelemenata - selena, cinka i bakra u hranu za mlečne krave na zdravlje i reproduktivne performanse",
pages = "110-101",
number = "2",
volume = "32",
doi = "10.2298/BAH1602101J"
}

Joksimović-Todorović, M., Davidović, V.,& Bojanić-Rašović, M.. (2016). The effects of some microelements supplementation: Selenium, zinc and copper into dairy cows feeds on their health and reproductive performances. in Biotechnology in Animal Husbandry
Institut za stočarstvo, Beograd., 32(2), 101-110.
https://doi.org/10.2298/BAH1602101J

Joksimović-Todorović M, Davidović V, Bojanić-Rašović M. The effects of some microelements supplementation: Selenium, zinc and copper into dairy cows feeds on their health and reproductive performances. in Biotechnology in Animal Husbandry. 2016;32(2):101-110.
doi:10.2298/BAH1602101J .

Joksimović-Todorović, Mirjana, Davidović, Vesna, Bojanić-Rašović, Mirjana, "The effects of some microelements supplementation: Selenium, zinc and copper into dairy cows feeds on their health and reproductive performances" in Biotechnology in Animal Husbandry, 32, no. 2 (2016):101-110,
https://doi.org/10.2298/BAH1602101J . .

TY  - CONF
AU  - Topisirović, Goran
AU  - Poleksić, Vesna
PY  - 2016
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/4002
AB  - Knowledge transfer in agricultural sciences is rather limited after students' graduation from the Faculty of Agriculture. There is a lack of courses for professional development of teachers from agricultural middle schools, as well as a need of permanent improvement and upgrading of courses and trainings created for advisors in agricultural extension services. The CaSA project objective is to contribute to the improvement of agricultural education to meet the needs of Serbian society. CaSA foresees: upgrading quality and availability of vocational agricultural education by strengthening professional and pedagogical competences of educators (University teachers, secondary school teachers, advisors) and creation of the repository for courses and additional contents important for agricultural education. Improvement of agricultural education will be achieved by introducing trainings in active teaching learning (ATL), communication skills, e-learning, together with newest knowledge emerging from research activities incorporated in vocational courses. Creation of the National Repository for Agricultural Education (NaRA), will enable networking of all stakeholders in agricultural education and assure sustainability. In addition, among 13 project partners, the Ministry of education is a compulsory partner for Structural Measures TEMPUS projects. This is important for recognition of the National repository by relevant state authorities. Online courses and teaching material, live stream trainings, results from the research projects, and different data bases will be available in NaRA after project life-time.
PB  - Agronomski fakultet Sveucilista u Zagrebu, 10000 Zagreb
C3  - Aktualni Zadaci Mehanizacije Poljoprivrede: Zbornik Radova
T1  - Building capacity of Serbian agricultural education to link with society
EP  - 521
SP  - 509
VL  - 44
UR  - https://hdl.handle.net/21.15107/rcub_agrospace_4002
ER  - 

@conference{
author = "Topisirović, Goran and Poleksić, Vesna",
year = "2016",
abstract = "Knowledge transfer in agricultural sciences is rather limited after students' graduation from the Faculty of Agriculture. There is a lack of courses for professional development of teachers from agricultural middle schools, as well as a need of permanent improvement and upgrading of courses and trainings created for advisors in agricultural extension services. The CaSA project objective is to contribute to the improvement of agricultural education to meet the needs of Serbian society. CaSA foresees: upgrading quality and availability of vocational agricultural education by strengthening professional and pedagogical competences of educators (University teachers, secondary school teachers, advisors) and creation of the repository for courses and additional contents important for agricultural education. Improvement of agricultural education will be achieved by introducing trainings in active teaching learning (ATL), communication skills, e-learning, together with newest knowledge emerging from research activities incorporated in vocational courses. Creation of the National Repository for Agricultural Education (NaRA), will enable networking of all stakeholders in agricultural education and assure sustainability. In addition, among 13 project partners, the Ministry of education is a compulsory partner for Structural Measures TEMPUS projects. This is important for recognition of the National repository by relevant state authorities. Online courses and teaching material, live stream trainings, results from the research projects, and different data bases will be available in NaRA after project life-time.",
publisher = "Agronomski fakultet Sveucilista u Zagrebu, 10000 Zagreb",
journal = "Aktualni Zadaci Mehanizacije Poljoprivrede: Zbornik Radova",
title = "Building capacity of Serbian agricultural education to link with society",
pages = "521-509",
volume = "44",
url = "https://hdl.handle.net/21.15107/rcub_agrospace_4002"
}

Topisirović, G.,& Poleksić, V.. (2016). Building capacity of Serbian agricultural education to link with society. in Aktualni Zadaci Mehanizacije Poljoprivrede: Zbornik Radova
Agronomski fakultet Sveucilista u Zagrebu, 10000 Zagreb., 44, 509-521.
https://hdl.handle.net/21.15107/rcub_agrospace_4002

Topisirović G, Poleksić V. Building capacity of Serbian agricultural education to link with society. in Aktualni Zadaci Mehanizacije Poljoprivrede: Zbornik Radova. 2016;44:509-521.
https://hdl.handle.net/21.15107/rcub_agrospace_4002 .

Topisirović, Goran, Poleksić, Vesna, "Building capacity of Serbian agricultural education to link with society" in Aktualni Zadaci Mehanizacije Poljoprivrede: Zbornik Radova, 44 (2016):509-521,
https://hdl.handle.net/21.15107/rcub_agrospace_4002 .

TY  - JOUR
AU  - Petrović, Milun D.
AU  - Bogdanović, Vladan
AU  - Petrović, Milan M.
AU  - Bogosavljević-Bošković, Snežana
AU  - Doković, Radojica
AU  - Djedović, Radica
AU  - Rakonjac, Simeon
PY  - 2015
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/3797
AB  - The effect of systematic and continuous environmental factors on milk performance traits over standard lactations in 2805 Simmental cows was evaluated using the general linear model. The systematic factors included the effect of farm or breeding area, calving season, year of birth, season of birth, lactation group and their interactions. The continuous factor analysed was the effect of age at first conception. The effect of farm, lactation group and calving season on standard lactation milk performance was found to be highly significant (P lt 0.01), excepting the effect of calving season on milk fat percent in standard lactations which showed statistical significance (P lt 0.05). The interactions between year and season of birth, farm and calving season, and farm and lactation group had a highly significant effect (P lt 0.01) on all performance traits studied. Age at first conception, as a continuous factor, had a highly significant effect (P lt 0.01) on milk yield and milk fat percent, and a non-significant effect on milk fat yield. The model used to correct the performance traits over standard lactations for the effect of systematic factors was highly significant (P lt 0.01). The variance of the model accounted for 20.06 and 37.31% of the total variance of milk fat yield and milk fat percent, respectively. The resulting coefficients of determination (R-2) ranged from 0.20 for milk fat yield to 0.37 for milk fat percent.
PB  - De Gruyter Open Ltd, Warsaw
T2  - Annals of Animal Science
T1  - Effect of non-genetic factors on standard lactation milk performance traits in simmental cows
EP  - 220
IS  - 1
SP  - 211
VL  - 15
DO  - 10.2478/aoas-2014-0073
ER  - 

@article{
author = "Petrović, Milun D. and Bogdanović, Vladan and Petrović, Milan M. and Bogosavljević-Bošković, Snežana and Doković, Radojica and Djedović, Radica and Rakonjac, Simeon",
year = "2015",
abstract = "The effect of systematic and continuous environmental factors on milk performance traits over standard lactations in 2805 Simmental cows was evaluated using the general linear model. The systematic factors included the effect of farm or breeding area, calving season, year of birth, season of birth, lactation group and their interactions. The continuous factor analysed was the effect of age at first conception. The effect of farm, lactation group and calving season on standard lactation milk performance was found to be highly significant (P lt 0.01), excepting the effect of calving season on milk fat percent in standard lactations which showed statistical significance (P lt 0.05). The interactions between year and season of birth, farm and calving season, and farm and lactation group had a highly significant effect (P lt 0.01) on all performance traits studied. Age at first conception, as a continuous factor, had a highly significant effect (P lt 0.01) on milk yield and milk fat percent, and a non-significant effect on milk fat yield. The model used to correct the performance traits over standard lactations for the effect of systematic factors was highly significant (P lt 0.01). The variance of the model accounted for 20.06 and 37.31% of the total variance of milk fat yield and milk fat percent, respectively. The resulting coefficients of determination (R-2) ranged from 0.20 for milk fat yield to 0.37 for milk fat percent.",
publisher = "De Gruyter Open Ltd, Warsaw",
journal = "Annals of Animal Science",
title = "Effect of non-genetic factors on standard lactation milk performance traits in simmental cows",
pages = "220-211",
number = "1",
volume = "15",
doi = "10.2478/aoas-2014-0073"
}

Petrović, M. D., Bogdanović, V., Petrović, M. M., Bogosavljević-Bošković, S., Doković, R., Djedović, R.,& Rakonjac, S.. (2015). Effect of non-genetic factors on standard lactation milk performance traits in simmental cows. in Annals of Animal Science
De Gruyter Open Ltd, Warsaw., 15(1), 211-220.
https://doi.org/10.2478/aoas-2014-0073

Petrović MD, Bogdanović V, Petrović MM, Bogosavljević-Bošković S, Doković R, Djedović R, Rakonjac S. Effect of non-genetic factors on standard lactation milk performance traits in simmental cows. in Annals of Animal Science. 2015;15(1):211-220.
doi:10.2478/aoas-2014-0073 .

Petrović, Milun D., Bogdanović, Vladan, Petrović, Milan M., Bogosavljević-Bošković, Snežana, Doković, Radojica, Djedović, Radica, Rakonjac, Simeon, "Effect of non-genetic factors on standard lactation milk performance traits in simmental cows" in Annals of Animal Science, 15, no. 1 (2015):211-220,
https://doi.org/10.2478/aoas-2014-0073 . .

TY  - CONF
AU  - Bogdanović, Vladan
AU  - Bogosavljević-Bošković, Snežana
AU  - Rakonjac, Simeon
AU  - Djoković, Radojica
AU  - Dosković, Vladimir
AU  - Petrović, Milun
PY  - 2015
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/5588
AB  - This study was conducted to evaluate the phenotypic expression and variability of lifetime performance traits (lifetime yields of milk, fat and 4%FCM, milk fat content, milk yield per milking day, milk yield per day of productive life and milk yield per day of life) and the effect of systematic factors (breeding region, total lactation number, year of birth and season of birth) and age at first conception on the above traits in 2548 Simmental cows. The test Simmental cows achieved the following: lifetime yields of milk, fat and 4%FCM - 14604, 554.8 and 14157 kg, respectively, milk fat content of lifetime milk yield - 3.81%, milk yield per milking day - 12.79, milk yield per day of productive life - 9.31 and milk yield per day of life - 5.46 kg. The marked variability of the traits, along with a certain percent of high-producing cows, enables further success in their selection.
AB  - Ispitivanje fenotipske ispoljenosti i varijabilnosti osobina životne proizvodnje (životna proizvodnja mleka, mlečne masti i 4%MKM, sadržaj mlečne masti kao i proizvodnja mleka po muznom produktivnom i životnom danu) izvršeno je na uzorku od 2548 krava simentalske rase. Na analiziranom uzorku simentalskih krava ostvarena životna proizvodnja mleka, mlečne masti i 4%MKM iznosila je 14604, 554.8 i 14157 kg, sadržaj mlečne masti životne proizvodnje mleka 3.81%, dok je proizvodnja mleka po muznom, produktivnom i životnom danu iznosila 12.79, 9.31 i 5.46 kg. Izražena varijabilnost ovih osobina, sa izvesnim procentom visoko proizvodnih grla, omogućava dalji uspešan rad u njihovoj selekciji.
C3  - 20. Savetovanje o biotehnologiji sa međunarodnim učešćem, Čačak, 13.- 14. 03. 2015.
T1  - Lifetime Production Milk and Milk Fat in Simmental Cows
T1  - Životna proizvodnja mleka i mlečne masti kod krava simentalske rase
UR  - https://hdl.handle.net/21.15107/rcub_agrospace_5588
ER  - 

@conference{
author = "Bogdanović, Vladan and Bogosavljević-Bošković, Snežana and Rakonjac, Simeon and Djoković, Radojica and Dosković, Vladimir and Petrović, Milun",
year = "2015",
abstract = "This study was conducted to evaluate the phenotypic expression and variability of lifetime performance traits (lifetime yields of milk, fat and 4%FCM, milk fat content, milk yield per milking day, milk yield per day of productive life and milk yield per day of life) and the effect of systematic factors (breeding region, total lactation number, year of birth and season of birth) and age at first conception on the above traits in 2548 Simmental cows. The test Simmental cows achieved the following: lifetime yields of milk, fat and 4%FCM - 14604, 554.8 and 14157 kg, respectively, milk fat content of lifetime milk yield - 3.81%, milk yield per milking day - 12.79, milk yield per day of productive life - 9.31 and milk yield per day of life - 5.46 kg. The marked variability of the traits, along with a certain percent of high-producing cows, enables further success in their selection., Ispitivanje fenotipske ispoljenosti i varijabilnosti osobina životne proizvodnje (životna proizvodnja mleka, mlečne masti i 4%MKM, sadržaj mlečne masti kao i proizvodnja mleka po muznom produktivnom i životnom danu) izvršeno je na uzorku od 2548 krava simentalske rase. Na analiziranom uzorku simentalskih krava ostvarena životna proizvodnja mleka, mlečne masti i 4%MKM iznosila je 14604, 554.8 i 14157 kg, sadržaj mlečne masti životne proizvodnje mleka 3.81%, dok je proizvodnja mleka po muznom, produktivnom i životnom danu iznosila 12.79, 9.31 i 5.46 kg. Izražena varijabilnost ovih osobina, sa izvesnim procentom visoko proizvodnih grla, omogućava dalji uspešan rad u njihovoj selekciji.",
journal = "20. Savetovanje o biotehnologiji sa međunarodnim učešćem, Čačak, 13.- 14. 03. 2015.",
title = "Lifetime Production Milk and Milk Fat in Simmental Cows, Životna proizvodnja mleka i mlečne masti kod krava simentalske rase",
url = "https://hdl.handle.net/21.15107/rcub_agrospace_5588"
}

Bogdanović, V., Bogosavljević-Bošković, S., Rakonjac, S., Djoković, R., Dosković, V.,& Petrović, M.. (2015). Lifetime Production Milk and Milk Fat in Simmental Cows. in 20. Savetovanje o biotehnologiji sa međunarodnim učešćem, Čačak, 13.- 14. 03. 2015..
https://hdl.handle.net/21.15107/rcub_agrospace_5588

Bogdanović V, Bogosavljević-Bošković S, Rakonjac S, Djoković R, Dosković V, Petrović M. Lifetime Production Milk and Milk Fat in Simmental Cows. in 20. Savetovanje o biotehnologiji sa međunarodnim učešćem, Čačak, 13.- 14. 03. 2015.. 2015;.
https://hdl.handle.net/21.15107/rcub_agrospace_5588 .

Bogdanović, Vladan, Bogosavljević-Bošković, Snežana, Rakonjac, Simeon, Djoković, Radojica, Dosković, Vladimir, Petrović, Milun, "Lifetime Production Milk and Milk Fat in Simmental Cows" in 20. Savetovanje o biotehnologiji sa međunarodnim učešćem, Čačak, 13.- 14. 03. 2015. (2015),
https://hdl.handle.net/21.15107/rcub_agrospace_5588 .

TY  - CONF
AU  - Popović, Nikola
AU  - Beskorovajni, Radmila
AU  - Stanojević, Dragan
PY  - 2015
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/5587
AB  - Modern beef production in intensive rearing conditions imposes a need for constant improvement of production traits of individuals. Meeting the growing requirements that accompany this type of production means the provision of optimal rearing conditions, not only in terms of cattle nutrition, care and housing but also in terms of health. Milk yield, milk fat and protein are properties of primary importance in dairy cattle breeding. These properties express a pronounced variability that occurs due to a large number of factors. The paper presents the average values and phenotypic variability of major milk production traits in the black-and-white cattle population raised on the farm "PK Beograd". In the first three standard lactations the average milk yield was 7.241 kg with 3.56% fat. The impact of major non-genetic factors (farm, year, season of calving) on the expression of milk production traits was also observed. The impact of the examined factors on the variability of the production traits was highly significant (P  lt 0.01).
AB  - Savremena govedarska proizvodnja u intenzivnim uslovima odgajivanja nameće potrebu konstantnog unapređenja proizvodnih osobina jedinki. Realizacija sve većih zahteva koji prate ovu proizvodnju podrazumeva obezbeđenje optimalnih uslova gajenja, kako u pogledu ishrane, nege i smeštaja, tako i zdravstvenog stanja goveda. Prinosi mleka, mlečne masti i proteina su osobine od primarnog značaja u selekciji i oplemenjivanju mlečnih rasa goveda. Ove osobine pokazuju izraženu varijabilnost koja se javlja usled delovanja velikog broja činilaca na njihovu ispoljenost. U radu su prikazane prosečne vrednosti i fenotipska varijabilnost važnijih osobina mlečnosti u populaciji crno belih goveda gajenih na farmi PK “Beograd”. U prve tri standardne laktacije ostvaren je prosečan prinos od 7241 kg mleka sa 3,56% mlečne masti. Posmatran je i uticaj važnijih negenetskih faktora (farme, godine, sezone teljenja) na ispoljenost osobina mlečnosti. Ustanovljen je visoko značajan uticaj ispitivanih faktora na varijabilnost posmatranih proizvodnih svojstava (P lt  0.01).
C3  - 20. Savetovanje o biotehnologiji sa međunarodnim učešćem, Čačak, 13.- 14. 03. 2015.
T1  - Impact of Major Non-Genetic Factors on Phenotypic Variability of Milk Production Traits in the Black And White Cattle Population
T1  - Uticaj važnijih negenetskih faktora na fenotipsku varijabilnost osobina mlečnosti u populaciji crno belih goveda
UR  - https://hdl.handle.net/21.15107/rcub_agrospace_5587
ER  - 

@conference{
author = "Popović, Nikola and Beskorovajni, Radmila and Stanojević, Dragan",
year = "2015",
abstract = "Modern beef production in intensive rearing conditions imposes a need for constant improvement of production traits of individuals. Meeting the growing requirements that accompany this type of production means the provision of optimal rearing conditions, not only in terms of cattle nutrition, care and housing but also in terms of health. Milk yield, milk fat and protein are properties of primary importance in dairy cattle breeding. These properties express a pronounced variability that occurs due to a large number of factors. The paper presents the average values and phenotypic variability of major milk production traits in the black-and-white cattle population raised on the farm "PK Beograd". In the first three standard lactations the average milk yield was 7.241 kg with 3.56% fat. The impact of major non-genetic factors (farm, year, season of calving) on the expression of milk production traits was also observed. The impact of the examined factors on the variability of the production traits was highly significant (P  lt 0.01)., Savremena govedarska proizvodnja u intenzivnim uslovima odgajivanja nameće potrebu konstantnog unapređenja proizvodnih osobina jedinki. Realizacija sve većih zahteva koji prate ovu proizvodnju podrazumeva obezbeđenje optimalnih uslova gajenja, kako u pogledu ishrane, nege i smeštaja, tako i zdravstvenog stanja goveda. Prinosi mleka, mlečne masti i proteina su osobine od primarnog značaja u selekciji i oplemenjivanju mlečnih rasa goveda. Ove osobine pokazuju izraženu varijabilnost koja se javlja usled delovanja velikog broja činilaca na njihovu ispoljenost. U radu su prikazane prosečne vrednosti i fenotipska varijabilnost važnijih osobina mlečnosti u populaciji crno belih goveda gajenih na farmi PK “Beograd”. U prve tri standardne laktacije ostvaren je prosečan prinos od 7241 kg mleka sa 3,56% mlečne masti. Posmatran je i uticaj važnijih negenetskih faktora (farme, godine, sezone teljenja) na ispoljenost osobina mlečnosti. Ustanovljen je visoko značajan uticaj ispitivanih faktora na varijabilnost posmatranih proizvodnih svojstava (P lt  0.01).",
journal = "20. Savetovanje o biotehnologiji sa međunarodnim učešćem, Čačak, 13.- 14. 03. 2015.",
title = "Impact of Major Non-Genetic Factors on Phenotypic Variability of Milk Production Traits in the Black And White Cattle Population, Uticaj važnijih negenetskih faktora na fenotipsku varijabilnost osobina mlečnosti u populaciji crno belih goveda",
url = "https://hdl.handle.net/21.15107/rcub_agrospace_5587"
}

Popović, N., Beskorovajni, R.,& Stanojević, D.. (2015). Impact of Major Non-Genetic Factors on Phenotypic Variability of Milk Production Traits in the Black And White Cattle Population. in 20. Savetovanje o biotehnologiji sa međunarodnim učešćem, Čačak, 13.- 14. 03. 2015..
https://hdl.handle.net/21.15107/rcub_agrospace_5587

Popović N, Beskorovajni R, Stanojević D. Impact of Major Non-Genetic Factors on Phenotypic Variability of Milk Production Traits in the Black And White Cattle Population. in 20. Savetovanje o biotehnologiji sa međunarodnim učešćem, Čačak, 13.- 14. 03. 2015.. 2015;.
https://hdl.handle.net/21.15107/rcub_agrospace_5587 .

Popović, Nikola, Beskorovajni, Radmila, Stanojević, Dragan, "Impact of Major Non-Genetic Factors on Phenotypic Variability of Milk Production Traits in the Black And White Cattle Population" in 20. Savetovanje o biotehnologiji sa međunarodnim učešćem, Čačak, 13.- 14. 03. 2015. (2015),
https://hdl.handle.net/21.15107/rcub_agrospace_5587 .

TY  - JOUR
AU  - Perišić, Predrag
AU  - Bogdanović, Vladan
AU  - Mekić, Cvijan
AU  - Ružić-Muslić, Dragana
AU  - Stanojević, Dragan
AU  - Popovac, Mladen
AU  - Stepić, Stefan
PY  - 2015
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/3867
AB  - This research paper gives an analysis on the size of world's domestic buffalo populations, their milk production and the size of buffalo population in Serbia. Population of domestic buffalo in the world is constantly increasing so that in 2013 there were 199 783 549 individuals, out of which in India in the same year they raised 57.77% of buffalo world population, in Pakistan 18.87%, and in China 11.64%. The share of total world production of buffalo milk in total world milk production in 2012 was 12.92 % or 97 417 135 t out of which 67.76% was produced in India. In Serbia buffalo is raised in the regions of Raška (about 1000 individuals) and Kosovo. Populations of buffalo in central Serbia show a tendency of decreasing in size what was the reason to start a programme of in situ conservation 10 years ago. On the sample of buffalo population encompassed by the programme of conservation the body measures were analysed indicating that the population of buffalo is quite unequalised and that average values obtained for exterior measures are similar to the results obtained by the authors of earlier period for the population of buffalo in the area of former Yugoslavia.
AB  - U radu je analizirano brojno stanje domaćih bivola u svetu, proizvodnja mleka bivola, kao i stanje populacije bivola u Srbiji. Populacija domaćih bivola u svetu stalno raste i 2013. godine bilo je 199.783.549 grla, a od tog broja u Indiji je u 2013. godini gajeno 57,77% svetske populacije bivola, u Pakistanu 18,87%, a u Kini 11,64%. Učešće ukupne svetske proizvodnje bivoljeg mleka u ukupnoj svetskoj proizvodnji mleka 2012. godine bilo je 12,92 % ili 97.417.135 t, a od toga je 67,76% proizvedeno u Indiji. U Srbiji bivoli se gaje u području Raške oblasti (oko 1000 bivola) i na području Kosova. Populacija bivola u centralnoj Srbiji ima tendenciju smanjenja veličine, zbog čega je pre 10 godina počeo da se sprovodi program konzervacije. Na uzorku populacije (37 bivolica) obuhvaćene programom in situ konzervacije utvrđene su prosečne vrednosti za telesne mere. Visina grebena bivolica u populaciji koja je merena bila je 125,97 cm, visina krsta 126,98cm, dužina trupa 142,19cm, dubina grudi 68,75 cm, širina grudi 44,48cm, a obim grudi 184,25 cm. Populacija bivolica je bila dosta neujednačena što ukazuje na odsustvo odgajivačko-selekcijskog rada kod bivola u Srbiji u prethodnim decenijama.
PB  - Institut za stočarstvo, Beograd
T2  - Biotechnology in Animal Husbandry
T1  - The importance of buffalo in milk production and buffalo population in Serbia
T1  - Značaj bivola u proizvodnji mleka i stanje populacije u Srbiji
EP  - 263
IS  - 2
SP  - 255
VL  - 31
DO  - 10.2298/BAH1502255P
ER  - 

@article{
author = "Perišić, Predrag and Bogdanović, Vladan and Mekić, Cvijan and Ružić-Muslić, Dragana and Stanojević, Dragan and Popovac, Mladen and Stepić, Stefan",
year = "2015",
abstract = "This research paper gives an analysis on the size of world's domestic buffalo populations, their milk production and the size of buffalo population in Serbia. Population of domestic buffalo in the world is constantly increasing so that in 2013 there were 199 783 549 individuals, out of which in India in the same year they raised 57.77% of buffalo world population, in Pakistan 18.87%, and in China 11.64%. The share of total world production of buffalo milk in total world milk production in 2012 was 12.92 % or 97 417 135 t out of which 67.76% was produced in India. In Serbia buffalo is raised in the regions of Raška (about 1000 individuals) and Kosovo. Populations of buffalo in central Serbia show a tendency of decreasing in size what was the reason to start a programme of in situ conservation 10 years ago. On the sample of buffalo population encompassed by the programme of conservation the body measures were analysed indicating that the population of buffalo is quite unequalised and that average values obtained for exterior measures are similar to the results obtained by the authors of earlier period for the population of buffalo in the area of former Yugoslavia., U radu je analizirano brojno stanje domaćih bivola u svetu, proizvodnja mleka bivola, kao i stanje populacije bivola u Srbiji. Populacija domaćih bivola u svetu stalno raste i 2013. godine bilo je 199.783.549 grla, a od tog broja u Indiji je u 2013. godini gajeno 57,77% svetske populacije bivola, u Pakistanu 18,87%, a u Kini 11,64%. Učešće ukupne svetske proizvodnje bivoljeg mleka u ukupnoj svetskoj proizvodnji mleka 2012. godine bilo je 12,92 % ili 97.417.135 t, a od toga je 67,76% proizvedeno u Indiji. U Srbiji bivoli se gaje u području Raške oblasti (oko 1000 bivola) i na području Kosova. Populacija bivola u centralnoj Srbiji ima tendenciju smanjenja veličine, zbog čega je pre 10 godina počeo da se sprovodi program konzervacije. Na uzorku populacije (37 bivolica) obuhvaćene programom in situ konzervacije utvrđene su prosečne vrednosti za telesne mere. Visina grebena bivolica u populaciji koja je merena bila je 125,97 cm, visina krsta 126,98cm, dužina trupa 142,19cm, dubina grudi 68,75 cm, širina grudi 44,48cm, a obim grudi 184,25 cm. Populacija bivolica je bila dosta neujednačena što ukazuje na odsustvo odgajivačko-selekcijskog rada kod bivola u Srbiji u prethodnim decenijama.",
publisher = "Institut za stočarstvo, Beograd",
journal = "Biotechnology in Animal Husbandry",
title = "The importance of buffalo in milk production and buffalo population in Serbia, Značaj bivola u proizvodnji mleka i stanje populacije u Srbiji",
pages = "263-255",
number = "2",
volume = "31",
doi = "10.2298/BAH1502255P"
}

Perišić, P., Bogdanović, V., Mekić, C., Ružić-Muslić, D., Stanojević, D., Popovac, M.,& Stepić, S.. (2015). The importance of buffalo in milk production and buffalo population in Serbia. in Biotechnology in Animal Husbandry
Institut za stočarstvo, Beograd., 31(2), 255-263.
https://doi.org/10.2298/BAH1502255P

Perišić P, Bogdanović V, Mekić C, Ružić-Muslić D, Stanojević D, Popovac M, Stepić S. The importance of buffalo in milk production and buffalo population in Serbia. in Biotechnology in Animal Husbandry. 2015;31(2):255-263.
doi:10.2298/BAH1502255P .

Perišić, Predrag, Bogdanović, Vladan, Mekić, Cvijan, Ružić-Muslić, Dragana, Stanojević, Dragan, Popovac, Mladen, Stepić, Stefan, "The importance of buffalo in milk production and buffalo population in Serbia" in Biotechnology in Animal Husbandry, 31, no. 2 (2015):255-263,
https://doi.org/10.2298/BAH1502255P . .

TY  - JOUR
AU  - Djedović, Radica
AU  - Bogdanović, Vladan
AU  - Perišić, Predrag
AU  - Stanojević, Dragan
AU  - Popović, Jelena
AU  - Brka, Muhamed
PY  - 2015
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/3776
AB  - The quality and yield of milk, and therefore of dairy products as well, depends directly on their protein composition. Milk gene proteins represent structural locuses that are functionally associated with milk production. In cattle selection a special importance is attached to the variability of kappa casein (kappa-CN) as one of the four casein milk proteins. Genotypes of 21 Simmental breed cows, 20 crossbred cows obtained by crossing of Simmental and Red Holstein breed, and 25 cows of autochthonous Busha breed were determined for kappa casein by restriction fragment length polymorphism analysis (PCR-RFLP) of amplified DNA. The kappa-CN genotype frequencies for Simmental breed were: 42.8; 47.6 and 9.6 % for AA, AB and BB genotype, for crossbreds: 75.0; 25.0 and 0.0% and for Busha individuals: 41.7; 50.0 and 8.3 %, respectively. Frequencies of A and B alleles, assessed on the basis of genotypic frequencies were 0.667 and 0.333 for Simmental breed, 0.875 and 0.125 for crossbreds and 0.667 and 0.333 for autochthonous Busha cattle breed, respectively. For confirming the phenotypic variability of milk yield in standard lactation, yield of milk fat and the content of milk fat per kappa-CN genotypes within breeds observed the fixed model which included the breed effect, lactation in order and effect of kappa-CN genotype (AA, AB and BB) was used. The kappa-CN genotype statistically significantly (p  lt = 0.05) influenced milk yield and highly significantly (p  lt = 0.01) milk fat yield, while the content of milk fat was not statistically significantly (p >0.05) influenced in examined animals.
PB  - Društvo genetičara Srbije, Beograd
T2  - Genetika
T1  - Relationship between genetic polymorphism of k- casein and quantitative milk yield traits in cattle breeds and crossbreds in Serbia
EP  - 32
IS  - 1
SP  - 23
VL  - 47
DO  - 10.2298/GENSR1501023D
ER  - 

@article{
author = "Djedović, Radica and Bogdanović, Vladan and Perišić, Predrag and Stanojević, Dragan and Popović, Jelena and Brka, Muhamed",
year = "2015",
abstract = "The quality and yield of milk, and therefore of dairy products as well, depends directly on their protein composition. Milk gene proteins represent structural locuses that are functionally associated with milk production. In cattle selection a special importance is attached to the variability of kappa casein (kappa-CN) as one of the four casein milk proteins. Genotypes of 21 Simmental breed cows, 20 crossbred cows obtained by crossing of Simmental and Red Holstein breed, and 25 cows of autochthonous Busha breed were determined for kappa casein by restriction fragment length polymorphism analysis (PCR-RFLP) of amplified DNA. The kappa-CN genotype frequencies for Simmental breed were: 42.8; 47.6 and 9.6 % for AA, AB and BB genotype, for crossbreds: 75.0; 25.0 and 0.0% and for Busha individuals: 41.7; 50.0 and 8.3 %, respectively. Frequencies of A and B alleles, assessed on the basis of genotypic frequencies were 0.667 and 0.333 for Simmental breed, 0.875 and 0.125 for crossbreds and 0.667 and 0.333 for autochthonous Busha cattle breed, respectively. For confirming the phenotypic variability of milk yield in standard lactation, yield of milk fat and the content of milk fat per kappa-CN genotypes within breeds observed the fixed model which included the breed effect, lactation in order and effect of kappa-CN genotype (AA, AB and BB) was used. The kappa-CN genotype statistically significantly (p  lt = 0.05) influenced milk yield and highly significantly (p  lt = 0.01) milk fat yield, while the content of milk fat was not statistically significantly (p >0.05) influenced in examined animals.",
publisher = "Društvo genetičara Srbije, Beograd",
journal = "Genetika",
title = "Relationship between genetic polymorphism of k- casein and quantitative milk yield traits in cattle breeds and crossbreds in Serbia",
pages = "32-23",
number = "1",
volume = "47",
doi = "10.2298/GENSR1501023D"
}

Djedović, R., Bogdanović, V., Perišić, P., Stanojević, D., Popović, J.,& Brka, M.. (2015). Relationship between genetic polymorphism of k- casein and quantitative milk yield traits in cattle breeds and crossbreds in Serbia. in Genetika
Društvo genetičara Srbije, Beograd., 47(1), 23-32.
https://doi.org/10.2298/GENSR1501023D

Djedović R, Bogdanović V, Perišić P, Stanojević D, Popović J, Brka M. Relationship between genetic polymorphism of k- casein and quantitative milk yield traits in cattle breeds and crossbreds in Serbia. in Genetika. 2015;47(1):23-32.
doi:10.2298/GENSR1501023D .

Djedović, Radica, Bogdanović, Vladan, Perišić, Predrag, Stanojević, Dragan, Popović, Jelena, Brka, Muhamed, "Relationship between genetic polymorphism of k- casein and quantitative milk yield traits in cattle breeds and crossbreds in Serbia" in Genetika, 47, no. 1 (2015):23-32,
https://doi.org/10.2298/GENSR1501023D . .

TY  - JOUR
AU  - Stanojević, Dragan
AU  - Djedović, Radica
AU  - Bogdanović, Vladan
AU  - Popovac, Mladen
AU  - Perišić, Predrag
AU  - Beskorovajni, Radmila
AU  - Lazarević, M.
PY  - 2015
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/3900
AB  - The conducted research was aimed at constructing equations of selection index that would be used in the selection of the Holstein-Friesian breed animals in Serbia. The construction of the selection index includes the most important milk traits observed in standard lactation: milk yield (MY305), milk fat content (% MF305) and protein content (% MP305). The variance and covariance necessary for the construction of selection index are calculated using the mixed model by the method of least squares. The economic value of traits is expressed as a ratio of relative changes in costs per unit of traits included in the selection index. Livestock included in the research produced, in the first standard lactation, an average of 7681 kg of milk with 3.58% milk fat and 3.28% protein. The equation of the selection index presented in the paper is selected from the group of equations of selection index, as an equation with the highest correlation between the equation and the aggregate genotype, which amounted to 0.2156.
AB  - Sprovedeno istraživanje imalo je za cilj konstruisanje jednačine selekcijskog indeksa koja bi se koristila u odabiru grla holštajn-frizijske rase u Srbiji. U konstrukciju selekcijskog indeksa uključene su najvažnije osobine mlečnosti posmatrane u standardnoj laktaciji: prinos mleka (PM305), sadržaj mlečne masti (%MM305) i sadržaj proteina (%MP305). Varijanse i kovarijanse neophodne za konstrukciju selekcijskog indeksa izračunate su primenom mešovitog modela metodom najmanjih kvadrata. Ekonomska vrednost osobina je izražena kao odnos relativne promene troškova po jedinici osobina uključenih u selekcijski indeks. Grla obuhvaćena istraživanjem prosečno su proizvela u prvoj standardnoj laktaciji 7681 kg mleka sa 3,58 % mlečne masti i 3,28% proteina. Jednačina selekcijskog indeksa prikazana u radu odabrana je iz grupe jednačina selekcijskog indeksa, kao jednačina sa najvećom korelacijom između jednačine i agregatnog genotipa, koja je iznosila 0,2156. .
PB  - Institut za stočarstvo, Beograd
T2  - Biotechnology in Animal Husbandry
T1  - The potentials of using selection index in the assessment of breeding values of Holstein breeds in Serbia
T1  - Mogućnosti upotrebe selekcijskog indeksa u proceni priplodne vrednosti krava Holštajn rase u Srbiji
EP  - 532
IS  - 4
SP  - 523
VL  - 31
DO  - 10.2298/bah1504523S
ER  - 

@article{
author = "Stanojević, Dragan and Djedović, Radica and Bogdanović, Vladan and Popovac, Mladen and Perišić, Predrag and Beskorovajni, Radmila and Lazarević, M.",
year = "2015",
abstract = "The conducted research was aimed at constructing equations of selection index that would be used in the selection of the Holstein-Friesian breed animals in Serbia. The construction of the selection index includes the most important milk traits observed in standard lactation: milk yield (MY305), milk fat content (% MF305) and protein content (% MP305). The variance and covariance necessary for the construction of selection index are calculated using the mixed model by the method of least squares. The economic value of traits is expressed as a ratio of relative changes in costs per unit of traits included in the selection index. Livestock included in the research produced, in the first standard lactation, an average of 7681 kg of milk with 3.58% milk fat and 3.28% protein. The equation of the selection index presented in the paper is selected from the group of equations of selection index, as an equation with the highest correlation between the equation and the aggregate genotype, which amounted to 0.2156., Sprovedeno istraživanje imalo je za cilj konstruisanje jednačine selekcijskog indeksa koja bi se koristila u odabiru grla holštajn-frizijske rase u Srbiji. U konstrukciju selekcijskog indeksa uključene su najvažnije osobine mlečnosti posmatrane u standardnoj laktaciji: prinos mleka (PM305), sadržaj mlečne masti (%MM305) i sadržaj proteina (%MP305). Varijanse i kovarijanse neophodne za konstrukciju selekcijskog indeksa izračunate su primenom mešovitog modela metodom najmanjih kvadrata. Ekonomska vrednost osobina je izražena kao odnos relativne promene troškova po jedinici osobina uključenih u selekcijski indeks. Grla obuhvaćena istraživanjem prosečno su proizvela u prvoj standardnoj laktaciji 7681 kg mleka sa 3,58 % mlečne masti i 3,28% proteina. Jednačina selekcijskog indeksa prikazana u radu odabrana je iz grupe jednačina selekcijskog indeksa, kao jednačina sa najvećom korelacijom između jednačine i agregatnog genotipa, koja je iznosila 0,2156. .",
publisher = "Institut za stočarstvo, Beograd",
journal = "Biotechnology in Animal Husbandry",
title = "The potentials of using selection index in the assessment of breeding values of Holstein breeds in Serbia, Mogućnosti upotrebe selekcijskog indeksa u proceni priplodne vrednosti krava Holštajn rase u Srbiji",
pages = "532-523",
number = "4",
volume = "31",
doi = "10.2298/bah1504523S"
}

Stanojević, D., Djedović, R., Bogdanović, V., Popovac, M., Perišić, P., Beskorovajni, R.,& Lazarević, M.. (2015). The potentials of using selection index in the assessment of breeding values of Holstein breeds in Serbia. in Biotechnology in Animal Husbandry
Institut za stočarstvo, Beograd., 31(4), 523-532.
https://doi.org/10.2298/bah1504523S

Stanojević D, Djedović R, Bogdanović V, Popovac M, Perišić P, Beskorovajni R, Lazarević M. The potentials of using selection index in the assessment of breeding values of Holstein breeds in Serbia. in Biotechnology in Animal Husbandry. 2015;31(4):523-532.
doi:10.2298/bah1504523S .

Stanojević, Dragan, Djedović, Radica, Bogdanović, Vladan, Popovac, Mladen, Perišić, Predrag, Beskorovajni, Radmila, Lazarević, M., "The potentials of using selection index in the assessment of breeding values of Holstein breeds in Serbia" in Biotechnology in Animal Husbandry, 31, no. 4 (2015):523-532,
https://doi.org/10.2298/bah1504523S . .

TY  - JOUR
AU  - Beskorovajni, Radmila
AU  - Djedović, Radica
AU  - Stojić, Petar
AU  - Novaković, Željko
AU  - Stanojević, Dragan
AU  - Popović, Nikola
PY  - 2015
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/3945
AB  - Improving the genetic capacity for highyielding, highquality and profitable milk production is the priority of countries with cattle production.Due to their marked phenotypic and genetic variability, milk production traits are particularly important in all breeding and improvement programmes. The paper presents the average values and phenotypic variability of major milk production traits examined in the first three complete and standard lactations, as well as the effect of systemic environmental factors on the expression of these traits. The bull-sire, farm, year, calving season and lactation sequence had a highly significant effect on the studiedmilk production parameters (P  lt 0.01). The paper also shows the heritability of milk production parameters, calculated with the method of least squares (LS) and the REML method. The coefficients of heritability for milk yield, milk fat content, fat yield and 4% in the standard lactation, calculated with the method of least squares, were 0.109; 0.047; 0.098 and 0.106, respectively. The coefficients of heritability calculated with the REML method were higher for all milk production traits in the standard lactation, being 0.148; 0.086; 0.128, and 0.138, respectively.
AB  - U zemljama koje se bave govedarskom proizvodnjom primaran značaj se daje unapređenju genetskih kapaciteta za visoku, kvalitetnu i ekonomski isplativu proizvodnju mleka. Osobine mlečnosti zbog izražene fenotipske i genetske varijabilnosti imaju poseban značaj u svim programima selekcije i oplemenjivanja. U radu su prikazane prosečne vrednosti i fenotipska varijabilnost važnijih osobina mlečnosti ispitivanih u prve tri cele i standardne laktacije, kao i uticaj sistematskih faktora okoline na ispoljenost ovih svojstava. Ustanovljen je visoko značajan uticaj bika-oca, farme, godine, sezone teljenja i redosleda laktacije na ispoljenost posmatranih osobina mlečnosti (P lt 0,01). Prikazana je i naslednost posmatranih osobina mlečnosti, ustanovljena primenom metode najmanjih kvadrata (LS) i REML metodom.Heritabiliteti dobijeni primenom metode najmanjih kvadrata za prinos mleka, sadržaj mlečne masti, prinos mlečne masti i 4% MKM u standardnoj laktaciji bili su 0,109; 0,047; 0,098 i 0,106, respektivno. Koeficijenti naslednosti dobijeni REML metodom imali su veće vrednosti za sve osobine mlečnosti u standardnoj laktaciji: 0,148; 0,086; 0,128 i 0,138, po istom redosledu osobina.
PB  - Institut PKB Agroekonomik, Padinska skela
T2  - Zbornik naučnih radova Instituta PKB Agroekonomik
T1  - Phenotypic and genetic variability of milk production traits of the black-and-white dairy cattle breed in the first three complete and standard lactations
T1  - Fenotipska i genetska varijabilnost osobina mlečnosti krava oplemenjene crno bele rase u prve tri cele i standardne laktacije
EP  - 53
IS  - 3-4
SP  - 47
VL  - 21
UR  - https://hdl.handle.net/21.15107/rcub_agrospace_3945
ER  - 

@article{
author = "Beskorovajni, Radmila and Djedović, Radica and Stojić, Petar and Novaković, Željko and Stanojević, Dragan and Popović, Nikola",
year = "2015",
abstract = "Improving the genetic capacity for highyielding, highquality and profitable milk production is the priority of countries with cattle production.Due to their marked phenotypic and genetic variability, milk production traits are particularly important in all breeding and improvement programmes. The paper presents the average values and phenotypic variability of major milk production traits examined in the first three complete and standard lactations, as well as the effect of systemic environmental factors on the expression of these traits. The bull-sire, farm, year, calving season and lactation sequence had a highly significant effect on the studiedmilk production parameters (P  lt 0.01). The paper also shows the heritability of milk production parameters, calculated with the method of least squares (LS) and the REML method. The coefficients of heritability for milk yield, milk fat content, fat yield and 4% in the standard lactation, calculated with the method of least squares, were 0.109; 0.047; 0.098 and 0.106, respectively. The coefficients of heritability calculated with the REML method were higher for all milk production traits in the standard lactation, being 0.148; 0.086; 0.128, and 0.138, respectively., U zemljama koje se bave govedarskom proizvodnjom primaran značaj se daje unapređenju genetskih kapaciteta za visoku, kvalitetnu i ekonomski isplativu proizvodnju mleka. Osobine mlečnosti zbog izražene fenotipske i genetske varijabilnosti imaju poseban značaj u svim programima selekcije i oplemenjivanja. U radu su prikazane prosečne vrednosti i fenotipska varijabilnost važnijih osobina mlečnosti ispitivanih u prve tri cele i standardne laktacije, kao i uticaj sistematskih faktora okoline na ispoljenost ovih svojstava. Ustanovljen je visoko značajan uticaj bika-oca, farme, godine, sezone teljenja i redosleda laktacije na ispoljenost posmatranih osobina mlečnosti (P lt 0,01). Prikazana je i naslednost posmatranih osobina mlečnosti, ustanovljena primenom metode najmanjih kvadrata (LS) i REML metodom.Heritabiliteti dobijeni primenom metode najmanjih kvadrata za prinos mleka, sadržaj mlečne masti, prinos mlečne masti i 4% MKM u standardnoj laktaciji bili su 0,109; 0,047; 0,098 i 0,106, respektivno. Koeficijenti naslednosti dobijeni REML metodom imali su veće vrednosti za sve osobine mlečnosti u standardnoj laktaciji: 0,148; 0,086; 0,128 i 0,138, po istom redosledu osobina.",
publisher = "Institut PKB Agroekonomik, Padinska skela",
journal = "Zbornik naučnih radova Instituta PKB Agroekonomik",
title = "Phenotypic and genetic variability of milk production traits of the black-and-white dairy cattle breed in the first three complete and standard lactations, Fenotipska i genetska varijabilnost osobina mlečnosti krava oplemenjene crno bele rase u prve tri cele i standardne laktacije",
pages = "53-47",
number = "3-4",
volume = "21",
url = "https://hdl.handle.net/21.15107/rcub_agrospace_3945"
}

Beskorovajni, R., Djedović, R., Stojić, P., Novaković, Ž., Stanojević, D.,& Popović, N.. (2015). Phenotypic and genetic variability of milk production traits of the black-and-white dairy cattle breed in the first three complete and standard lactations. in Zbornik naučnih radova Instituta PKB Agroekonomik
Institut PKB Agroekonomik, Padinska skela., 21(3-4), 47-53.
https://hdl.handle.net/21.15107/rcub_agrospace_3945

Beskorovajni R, Djedović R, Stojić P, Novaković Ž, Stanojević D, Popović N. Phenotypic and genetic variability of milk production traits of the black-and-white dairy cattle breed in the first three complete and standard lactations. in Zbornik naučnih radova Instituta PKB Agroekonomik. 2015;21(3-4):47-53.
https://hdl.handle.net/21.15107/rcub_agrospace_3945 .

Beskorovajni, Radmila, Djedović, Radica, Stojić, Petar, Novaković, Željko, Stanojević, Dragan, Popović, Nikola, "Phenotypic and genetic variability of milk production traits of the black-and-white dairy cattle breed in the first three complete and standard lactations" in Zbornik naučnih radova Instituta PKB Agroekonomik, 21, no. 3-4 (2015):47-53,
https://hdl.handle.net/21.15107/rcub_agrospace_3945 .

TY  - JOUR
AU  - Stanojević, Dragan
AU  - Djedović, Radica
AU  - Bogdanović, Vladan
AU  - Popovac, Mladen
AU  - Perišić, Predrag
AU  - Beskorovajni, Radmila
PY  - 2015
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/3946
AB  - The objective of this study was a construction of selection index on the basis of whose score the cows could be graded during their selection and formation of parent pairs. The most important milk yield traits in standard lactation: milk yield (PM305), milk fat content (%MM305) and protein content (%MP305) were included in the construction of selection index. Variances and covariances deemed necessary for construction of selection index were calculated by use of the mixed model of the Least Squares method. Economic value of the traits was expressed as a relationship of relative cost changes per unit of the traits included in the selection index. The individuals included in the trial on average produced 8261 kg milk with 294.14 kg milk fat and 270.07 kg protein in standard lactation. Equation of selection index used in this study was chosen from a set of selection index equations, as an equation having the highest correlation between the equation and aggregate genotype which amounted to 0.4275.
AB  - Cilj istraživanja bila je konstrukcija selekcijskog indeksa, na osnovu čijeg skora bi se mogle rangirati krave prilikom njihovog odabira i formiranja roditeljskih parova. U konstrukciju selekcijskog indeksa uključene su najvažnije osobine mlečnosti posmatrane u standardnoj laktaciji: prinos mleka (PM305), sadržaj mlečne masti (%MM305) i sadržaj proteina (%MP305). Varijanse i kovarijanse neophodne za konstrukciju selekcijskog indeksa izračunate su primenom mešovitog modela metodom najmanjih kvadrata. Ekonomska vrednost osobina je izražena kao odnos relativne promene troškova po jedinici osobina uključenih u selekcijski indeks. Grla obuhvaćena istraživanjem prosečno su proizvela u standardnoj laktaciji 8261 kg mleka sa 294,14 kg mlečne masti i 270,07 kg proteina. Jednačina selekcijskog indeksa prikazana u radu odabrana je iz grupe jednacina selekcijskog indeksa, kao jednacina sa najvećom korelacijom između jednačine i agregatnog genotipa, koja je iznosila 0,4275.
PB  - Institut PKB Agroekonomik, Padinska skela
T2  - Zbornik naučnih radova Instituta PKB Agroekonomik
T1  - The assessment of breeding value in black and white cattle by use of selection index
T1  - Procena priplodne vrednosti krava crno-bele rase upotrebom selekcijskog indeksa
EP  - 45
IS  - 3-4
SP  - 39
VL  - 21
UR  - https://hdl.handle.net/21.15107/rcub_agrospace_3946
ER  - 

@article{
author = "Stanojević, Dragan and Djedović, Radica and Bogdanović, Vladan and Popovac, Mladen and Perišić, Predrag and Beskorovajni, Radmila",
year = "2015",
abstract = "The objective of this study was a construction of selection index on the basis of whose score the cows could be graded during their selection and formation of parent pairs. The most important milk yield traits in standard lactation: milk yield (PM305), milk fat content (%MM305) and protein content (%MP305) were included in the construction of selection index. Variances and covariances deemed necessary for construction of selection index were calculated by use of the mixed model of the Least Squares method. Economic value of the traits was expressed as a relationship of relative cost changes per unit of the traits included in the selection index. The individuals included in the trial on average produced 8261 kg milk with 294.14 kg milk fat and 270.07 kg protein in standard lactation. Equation of selection index used in this study was chosen from a set of selection index equations, as an equation having the highest correlation between the equation and aggregate genotype which amounted to 0.4275., Cilj istraživanja bila je konstrukcija selekcijskog indeksa, na osnovu čijeg skora bi se mogle rangirati krave prilikom njihovog odabira i formiranja roditeljskih parova. U konstrukciju selekcijskog indeksa uključene su najvažnije osobine mlečnosti posmatrane u standardnoj laktaciji: prinos mleka (PM305), sadržaj mlečne masti (%MM305) i sadržaj proteina (%MP305). Varijanse i kovarijanse neophodne za konstrukciju selekcijskog indeksa izračunate su primenom mešovitog modela metodom najmanjih kvadrata. Ekonomska vrednost osobina je izražena kao odnos relativne promene troškova po jedinici osobina uključenih u selekcijski indeks. Grla obuhvaćena istraživanjem prosečno su proizvela u standardnoj laktaciji 8261 kg mleka sa 294,14 kg mlečne masti i 270,07 kg proteina. Jednačina selekcijskog indeksa prikazana u radu odabrana je iz grupe jednacina selekcijskog indeksa, kao jednacina sa najvećom korelacijom između jednačine i agregatnog genotipa, koja je iznosila 0,4275.",
publisher = "Institut PKB Agroekonomik, Padinska skela",
journal = "Zbornik naučnih radova Instituta PKB Agroekonomik",
title = "The assessment of breeding value in black and white cattle by use of selection index, Procena priplodne vrednosti krava crno-bele rase upotrebom selekcijskog indeksa",
pages = "45-39",
number = "3-4",
volume = "21",
url = "https://hdl.handle.net/21.15107/rcub_agrospace_3946"
}

Stanojević, D., Djedović, R., Bogdanović, V., Popovac, M., Perišić, P.,& Beskorovajni, R.. (2015). The assessment of breeding value in black and white cattle by use of selection index. in Zbornik naučnih radova Instituta PKB Agroekonomik
Institut PKB Agroekonomik, Padinska skela., 21(3-4), 39-45.
https://hdl.handle.net/21.15107/rcub_agrospace_3946

Stanojević D, Djedović R, Bogdanović V, Popovac M, Perišić P, Beskorovajni R. The assessment of breeding value in black and white cattle by use of selection index. in Zbornik naučnih radova Instituta PKB Agroekonomik. 2015;21(3-4):39-45.
https://hdl.handle.net/21.15107/rcub_agrospace_3946 .

Stanojević, Dragan, Djedović, Radica, Bogdanović, Vladan, Popovac, Mladen, Perišić, Predrag, Beskorovajni, Radmila, "The assessment of breeding value in black and white cattle by use of selection index" in Zbornik naučnih radova Instituta PKB Agroekonomik, 21, no. 3-4 (2015):39-45,
https://hdl.handle.net/21.15107/rcub_agrospace_3946 .