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  - Lazarević, M.
AU  - Nikšić, Dragan
AU  - Pantelić, Vlada
AU  - Stanišić, Nikola
AU  - Delić, N.
AU  - Stanojević, Dragan
AU  - Novaković, Ž.
PY  - 2015
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/3869
AB  - To test the variability of traits of Simmental bulls in performance test, data of the Livestock - Veterinary Centres for Reproduction and Artificial Insemination of Velika Plana and Krnjača were used. In the analysis, data on 113 performance tested bulls born from 2008 to 2009 were used. The analysis included two sets of characteristics: body development traits and growth traits. The average body mass of calves entering the test was 195.75 kg, while the body mass at the end of the test was 476.50 kg, average daily gain in the test was 1138.69 g. Average values of body development traits measured at the end of the test, with 12 months of age were: height at withers 127.13 cm, chest circumference 179.42 cm, the chest depth 61.19 cm and body length 151.34 cm. The influence of their sires, the year and the Centre on the variability of traits was studied. The effect of age is present at a high level of statistical significance (p lt 0.01) for all traits that are registered at the end of the test, while the effect of the Centre was present in the variability of body mass at the end of the test, the daily gain in the test and the length of the body. The bulls-sires' influence was demonstrated (p lt 0.05) on the variability in body mass of calves entering the test.
AB  - Za ispitivanje varijabilnosti osobina simentalskih bikova u performans testu iskorišćeni su podaci stočarsko-veterinarskog centra za reprodukciju i veštačko osemenjavanje iz Velike Plane i Krnjače. Za analizu su upotrebljeni podaci o 113 performans testiranih bikova rođenih u periodu od 2008 do 2009 godine. Analizom su obuhvaćene dve grupe osobina: osobine telesne razvijenosti i osobine porasta. Prosečna telesna masa sa kojom su telad ulazila u test iznosila je 195,75 kg, dok je telesna masa na kraju testa 476,50 kg, prosečan dnevni prirast u testu iznosio je 1138,69 g. Prosečne vrednosti osobina telesne razvijenosti merenim na kraju testa, sa 12 meseci uzrasta iznosile su: visina grebena 127.13 cm, obim grudi 179.42 cm, dubina grudi 61.19 cm i dužina trupa 151.34 cm. Analizirani su uticaj očeva, godine i centra na varijabilnost osobina. Efekat godine je prisutan na visokom nivou statističke značajnosti (p lt 0,01) za sve osobine koje se registruju na kraju testa, dok je efekat centra prisutan u varijabilnosti telesne mase na kraju testa, dnevnog prirasta u testu i dužini tela. Bikovi-očevi su ispoljili uticaj (p lt 0,05) na varijabilnost telesne mase sa kojom su telad ulazila u test.
PB  - Institut za stočarstvo, Beograd
T2  - Biotechnology in Animal Husbandry
T1  - Sources of variability of growth and body development traits of Simmental bulls in performance test
T1  - Izvori varijabilnosti osobina porasta i telesne razvijenosti bikova Simentalske rase u performans testu
EP  - 348
IS  - 3
SP  - 339
VL  - 31
DO  - 10.2298/BAH1503339L
ER  - 

@article{
author = "Lazarević, M. and Nikšić, Dragan and Pantelić, Vlada and Stanišić, Nikola and Delić, N. and Stanojević, Dragan and Novaković, Ž.",
year = "2015",
abstract = "To test the variability of traits of Simmental bulls in performance test, data of the Livestock - Veterinary Centres for Reproduction and Artificial Insemination of Velika Plana and Krnjača were used. In the analysis, data on 113 performance tested bulls born from 2008 to 2009 were used. The analysis included two sets of characteristics: body development traits and growth traits. The average body mass of calves entering the test was 195.75 kg, while the body mass at the end of the test was 476.50 kg, average daily gain in the test was 1138.69 g. Average values of body development traits measured at the end of the test, with 12 months of age were: height at withers 127.13 cm, chest circumference 179.42 cm, the chest depth 61.19 cm and body length 151.34 cm. The influence of their sires, the year and the Centre on the variability of traits was studied. The effect of age is present at a high level of statistical significance (p lt 0.01) for all traits that are registered at the end of the test, while the effect of the Centre was present in the variability of body mass at the end of the test, the daily gain in the test and the length of the body. The bulls-sires' influence was demonstrated (p lt 0.05) on the variability in body mass of calves entering the test., Za ispitivanje varijabilnosti osobina simentalskih bikova u performans testu iskorišćeni su podaci stočarsko-veterinarskog centra za reprodukciju i veštačko osemenjavanje iz Velike Plane i Krnjače. Za analizu su upotrebljeni podaci o 113 performans testiranih bikova rođenih u periodu od 2008 do 2009 godine. Analizom su obuhvaćene dve grupe osobina: osobine telesne razvijenosti i osobine porasta. Prosečna telesna masa sa kojom su telad ulazila u test iznosila je 195,75 kg, dok je telesna masa na kraju testa 476,50 kg, prosečan dnevni prirast u testu iznosio je 1138,69 g. Prosečne vrednosti osobina telesne razvijenosti merenim na kraju testa, sa 12 meseci uzrasta iznosile su: visina grebena 127.13 cm, obim grudi 179.42 cm, dubina grudi 61.19 cm i dužina trupa 151.34 cm. Analizirani su uticaj očeva, godine i centra na varijabilnost osobina. Efekat godine je prisutan na visokom nivou statističke značajnosti (p lt 0,01) za sve osobine koje se registruju na kraju testa, dok je efekat centra prisutan u varijabilnosti telesne mase na kraju testa, dnevnog prirasta u testu i dužini tela. Bikovi-očevi su ispoljili uticaj (p lt 0,05) na varijabilnost telesne mase sa kojom su telad ulazila u test.",
publisher = "Institut za stočarstvo, Beograd",
journal = "Biotechnology in Animal Husbandry",
title = "Sources of variability of growth and body development traits of Simmental bulls in performance test, Izvori varijabilnosti osobina porasta i telesne razvijenosti bikova Simentalske rase u performans testu",
pages = "348-339",
number = "3",
volume = "31",
doi = "10.2298/BAH1503339L"
}

Lazarević, M., Nikšić, D., Pantelić, V., Stanišić, N., Delić, N., Stanojević, D.,& Novaković, Ž.. (2015). Sources of variability of growth and body development traits of Simmental bulls in performance test. in Biotechnology in Animal Husbandry
Institut za stočarstvo, Beograd., 31(3), 339-348.
https://doi.org/10.2298/BAH1503339L

Lazarević M, Nikšić D, Pantelić V, Stanišić N, Delić N, Stanojević D, Novaković Ž. Sources of variability of growth and body development traits of Simmental bulls in performance test. in Biotechnology in Animal Husbandry. 2015;31(3):339-348.
doi:10.2298/BAH1503339L .

Lazarević, M., Nikšić, Dragan, Pantelić, Vlada, Stanišić, Nikola, Delić, N., Stanojević, Dragan, Novaković, Ž., "Sources of variability of growth and body development traits of Simmental bulls in performance test" in Biotechnology in Animal Husbandry, 31, no. 3 (2015):339-348,
https://doi.org/10.2298/BAH1503339L . .

TY  - JOUR
AU  - Ilić-Milošević, Marijana
AU  - Lazarević, M.
AU  - Petrović-Obradović, Olivera
AU  - Žikić, Vladimir
PY  - 2014
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/3543
AB  - One hundred and eighty-six tritrophic parasitoid-aphid plant associations were established between
Lysiphlebus fabarum and 64 aphids with 148 different plant species from the territory of Serbia. We
identified 18 aphid genera of which the genus Aphis was represented by 38 species. The most frequent
interactions between the parasitoid and the hosts were the ones of Aphis fabae, A. craccivora and A. ruborum
on various plants comprising one third of the total trophic interactions listed here.
PB  - Univerzitet u Nišu - Prirodno-matematički fakultet, Niš
T2  - Biologica Nyssana
T1  - Tritrophic associations of Lysiphlebus fabarum (Marshall) (Hymenoptera, Braconidae, Aphidiinae) in Serbia
EP  - 121
IS  - 2
SP  - 113
VL  - 5
UR  - https://hdl.handle.net/21.15107/rcub_agrospace_3543
ER  - 

@article{
author = "Ilić-Milošević, Marijana and Lazarević, M. and Petrović-Obradović, Olivera and Žikić, Vladimir",
year = "2014",
abstract = "One hundred and eighty-six tritrophic parasitoid-aphid plant associations were established between
Lysiphlebus fabarum and 64 aphids with 148 different plant species from the territory of Serbia. We
identified 18 aphid genera of which the genus Aphis was represented by 38 species. The most frequent
interactions between the parasitoid and the hosts were the ones of Aphis fabae, A. craccivora and A. ruborum
on various plants comprising one third of the total trophic interactions listed here.",
publisher = "Univerzitet u Nišu - Prirodno-matematički fakultet, Niš",
journal = "Biologica Nyssana",
title = "Tritrophic associations of Lysiphlebus fabarum (Marshall) (Hymenoptera, Braconidae, Aphidiinae) in Serbia",
pages = "121-113",
number = "2",
volume = "5",
url = "https://hdl.handle.net/21.15107/rcub_agrospace_3543"
}

Ilić-Milošević, M., Lazarević, M., Petrović-Obradović, O.,& Žikić, V.. (2014). Tritrophic associations of Lysiphlebus fabarum (Marshall) (Hymenoptera, Braconidae, Aphidiinae) in Serbia. in Biologica Nyssana
Univerzitet u Nišu - Prirodno-matematički fakultet, Niš., 5(2), 113-121.
https://hdl.handle.net/21.15107/rcub_agrospace_3543

Ilić-Milošević M, Lazarević M, Petrović-Obradović O, Žikić V. Tritrophic associations of Lysiphlebus fabarum (Marshall) (Hymenoptera, Braconidae, Aphidiinae) in Serbia. in Biologica Nyssana. 2014;5(2):113-121.
https://hdl.handle.net/21.15107/rcub_agrospace_3543 .

Ilić-Milošević, Marijana, Lazarević, M., Petrović-Obradović, Olivera, Žikić, Vladimir, "Tritrophic associations of Lysiphlebus fabarum (Marshall) (Hymenoptera, Braconidae, Aphidiinae) in Serbia" in Biologica Nyssana, 5, no. 2 (2014):113-121,
https://hdl.handle.net/21.15107/rcub_agrospace_3543 .

TY  - JOUR
AU  - Nikšić, Dragan
AU  - Pantelić, Vlada
AU  - Ostojić-Andrić, Dušica
AU  - Perišić, Predrag
AU  - Petričević, M.
AU  - Djedović, Radica
AU  - Lazarević, M.
PY  - 2012
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/2844
AB  - Exceptionally important aspect in cattle production, from the aspect of production and economy, is ensuring normal and regular fertility. Every cattle breeder wants to have high-yielding animals which at the same time have good fertility. In proper cattle breeding this means that from each cow during single year one healthy calf is obtained. Use of artificial insemination has enabled that one breeding male is used as sire for several tens of thousands of progeny, however, there is always the risk that sires could be carriers of lethal and semi-lethal genes, which can cause huge losses of calves. In order to bring these undesirable occurrences to a minimum, so called bilogical test is included in the breeding and selection activities, i.e. bulls are tested through their progeny for presence of difficult calving (dystocia) abd calf losses caused by genetic anomalies. In Republic of Serbia, this test is carried out on ehtire Simmental population in an exchange of data produced by primary breeding organizations. Per each tested bull, it is necessary to have data on minimum 50 randomly selected calves. Calves are examined visually 65 days after the birth, at the latest. In the present study, the results of the biological testing of 35 Simmental bulls, sires of total 3572 calves on the territory of Central Serbia, in the period 2008-2009, are used. The effect of sires on parameters of biological test were studied: body mass of calves at birth, calf score and calving score. Also, bulls were ranked based on said parameters, male/female calves ratio and percentage of twins and still-born calves for each bull individually were determined. After the rank of bulls was established, the correlation between the rank and studied fertility traits was determined. Correlations were expressed using the Spearman coefficient. Research results show that the effect of bulls was very high p lt 0,001 on all three parameters of the biological test, and also that the percentage of still born calves for all bulls was within limits, with the exception of bulls Zahlo (HB 1497) and Woz (HB 1433) where it was above 5.
AB  - Izuzetno važan aspekt u govedarskoj proizvodnji, gledano sa proizvodnog i ekonomskog stanovišta je obezbeđivanje normalne i redovne plodnosti. Svaki odgajivač goveda želi da ima grla koja su visoko proizvodna i istovremeno poseduju dobru plodnost. Za pravilno odgajivanje goveda to znači da se od svake krave u toku godine dobije po jedno zdravo tele. Upotreba veštačkog osemenjavanja omogućila je da jedan priplodnjak bude otac nekoliko desetina hiljada potomaka. Međutim, uvek postoji rizik da su očevi nosioci letalnih i semiletalnih gena, što može prouzrokovati velike gubitke teladi. Da bi se ove nepoželjne pojave svele na najmanju moguću meru u odgajivački i selekcijski rad uključeno je ispitivanje bikova po potomstvu na teška teljenja i gubitke teladi izazvane genetskim anomalijama, tzv. biološki test. Ovaj test se u Republici Srbiji vrši jedinstveno za čitavu populaciju simentalske rase, razmenom podataka između odgajivačkih organizacija. Po svakom biku koji se testira, neophodno je imati podatke za najmanje 50 slučajno odabrane teladi. Vizualni pregled teladi se obavlja najkasnije do 65 dana, od datuma rođenja teleta. U ovom istraživanju korišćeni su rezultati biološkog testa 35 bikova simentalske rase koji su bili očevi ukupno 3572 teladi na teritoriji centralne Srbije u periodu 2008. i 2009. godine. U radu je ispitivan uticaj očeva na parametre biološkog testa: telesnu masu teladi po rođenju, ocenu teleta i ocenu toka teljenja. Takođe je izvršeno rangiranje bikova na ove parametre, kao i utvrđivanje odnosa muške i ženske teladi, procenat bližnjenja kao i procenat mrtvorođene teladi za svakog bika posebno. Nakon utvrđenog ranga bikova izvršena je korelacija ranga ispitivanih osobina plodnosti. Korelacije su iskazane Spirmanovim koeficijentom. Rezultati istraživanja pokazali su da je uticaj bikova izuzetno visok p lt 0,001 na sva tri parametra u biološkom testu, kao i da je procenat mrtvorođene teladi kod svih bikova u dozvoljenim granica, osim bikova Zahlo (HB 1497) i Woz (HB 1433) gde je iznosio preko 5.
PB  - Institut za stočarstvo, Beograd
T2  - Biotechnology in Animal Husbandry
T1  - Results of the biological test of simmental bulls in central Serbia
T1  - Rezultati biološkog testa bikova simentalske rase u centralnoj Srbiji
EP  - 507
IS  - 3
SP  - 497
VL  - 28
DO  - 10.2298/BAH1203497N
ER  - 

@article{
author = "Nikšić, Dragan and Pantelić, Vlada and Ostojić-Andrić, Dušica and Perišić, Predrag and Petričević, M. and Djedović, Radica and Lazarević, M.",
year = "2012",
abstract = "Exceptionally important aspect in cattle production, from the aspect of production and economy, is ensuring normal and regular fertility. Every cattle breeder wants to have high-yielding animals which at the same time have good fertility. In proper cattle breeding this means that from each cow during single year one healthy calf is obtained. Use of artificial insemination has enabled that one breeding male is used as sire for several tens of thousands of progeny, however, there is always the risk that sires could be carriers of lethal and semi-lethal genes, which can cause huge losses of calves. In order to bring these undesirable occurrences to a minimum, so called bilogical test is included in the breeding and selection activities, i.e. bulls are tested through their progeny for presence of difficult calving (dystocia) abd calf losses caused by genetic anomalies. In Republic of Serbia, this test is carried out on ehtire Simmental population in an exchange of data produced by primary breeding organizations. Per each tested bull, it is necessary to have data on minimum 50 randomly selected calves. Calves are examined visually 65 days after the birth, at the latest. In the present study, the results of the biological testing of 35 Simmental bulls, sires of total 3572 calves on the territory of Central Serbia, in the period 2008-2009, are used. The effect of sires on parameters of biological test were studied: body mass of calves at birth, calf score and calving score. Also, bulls were ranked based on said parameters, male/female calves ratio and percentage of twins and still-born calves for each bull individually were determined. After the rank of bulls was established, the correlation between the rank and studied fertility traits was determined. Correlations were expressed using the Spearman coefficient. Research results show that the effect of bulls was very high p lt 0,001 on all three parameters of the biological test, and also that the percentage of still born calves for all bulls was within limits, with the exception of bulls Zahlo (HB 1497) and Woz (HB 1433) where it was above 5., Izuzetno važan aspekt u govedarskoj proizvodnji, gledano sa proizvodnog i ekonomskog stanovišta je obezbeđivanje normalne i redovne plodnosti. Svaki odgajivač goveda želi da ima grla koja su visoko proizvodna i istovremeno poseduju dobru plodnost. Za pravilno odgajivanje goveda to znači da se od svake krave u toku godine dobije po jedno zdravo tele. Upotreba veštačkog osemenjavanja omogućila je da jedan priplodnjak bude otac nekoliko desetina hiljada potomaka. Međutim, uvek postoji rizik da su očevi nosioci letalnih i semiletalnih gena, što može prouzrokovati velike gubitke teladi. Da bi se ove nepoželjne pojave svele na najmanju moguću meru u odgajivački i selekcijski rad uključeno je ispitivanje bikova po potomstvu na teška teljenja i gubitke teladi izazvane genetskim anomalijama, tzv. biološki test. Ovaj test se u Republici Srbiji vrši jedinstveno za čitavu populaciju simentalske rase, razmenom podataka između odgajivačkih organizacija. Po svakom biku koji se testira, neophodno je imati podatke za najmanje 50 slučajno odabrane teladi. Vizualni pregled teladi se obavlja najkasnije do 65 dana, od datuma rođenja teleta. U ovom istraživanju korišćeni su rezultati biološkog testa 35 bikova simentalske rase koji su bili očevi ukupno 3572 teladi na teritoriji centralne Srbije u periodu 2008. i 2009. godine. U radu je ispitivan uticaj očeva na parametre biološkog testa: telesnu masu teladi po rođenju, ocenu teleta i ocenu toka teljenja. Takođe je izvršeno rangiranje bikova na ove parametre, kao i utvrđivanje odnosa muške i ženske teladi, procenat bližnjenja kao i procenat mrtvorođene teladi za svakog bika posebno. Nakon utvrđenog ranga bikova izvršena je korelacija ranga ispitivanih osobina plodnosti. Korelacije su iskazane Spirmanovim koeficijentom. Rezultati istraživanja pokazali su da je uticaj bikova izuzetno visok p lt 0,001 na sva tri parametra u biološkom testu, kao i da je procenat mrtvorođene teladi kod svih bikova u dozvoljenim granica, osim bikova Zahlo (HB 1497) i Woz (HB 1433) gde je iznosio preko 5.",
publisher = "Institut za stočarstvo, Beograd",
journal = "Biotechnology in Animal Husbandry",
title = "Results of the biological test of simmental bulls in central Serbia, Rezultati biološkog testa bikova simentalske rase u centralnoj Srbiji",
pages = "507-497",
number = "3",
volume = "28",
doi = "10.2298/BAH1203497N"
}

Nikšić, D., Pantelić, V., Ostojić-Andrić, D., Perišić, P., Petričević, M., Djedović, R.,& Lazarević, M.. (2012). Results of the biological test of simmental bulls in central Serbia. in Biotechnology in Animal Husbandry
Institut za stočarstvo, Beograd., 28(3), 497-507.
https://doi.org/10.2298/BAH1203497N

Nikšić D, Pantelić V, Ostojić-Andrić D, Perišić P, Petričević M, Djedović R, Lazarević M. Results of the biological test of simmental bulls in central Serbia. in Biotechnology in Animal Husbandry. 2012;28(3):497-507.
doi:10.2298/BAH1203497N .

Nikšić, Dragan, Pantelić, Vlada, Ostojić-Andrić, Dušica, Perišić, Predrag, Petričević, M., Djedović, Radica, Lazarević, M., "Results of the biological test of simmental bulls in central Serbia" in Biotechnology in Animal Husbandry, 28, no. 3 (2012):497-507,
https://doi.org/10.2298/BAH1203497N . .

TY  - JOUR
AU  - Nikšić, Dragan
AU  - Ostojić-Andrić, Dušica
AU  - Pantelić, Vlada
AU  - Perišić, Predrag
AU  - Novaković, Ž.
AU  - Aleksić, S.
AU  - Lazarević, M.
PY  - 2011
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/2470
AB  - Cattle production in Serbia, and especially milk production, contributes significantly to the value of total agricultural production (20%) and livestock production (45%). Achieved annual rate of milk yield increase of approx.100 kg per cow cannot adequately compensate for drastic decrease of number of dairy cattle which dropped by fifth over last decade. This is especially important from the aspect of assessment of future production quotas for milk as part of Serbia's preparation for EU accession. From the aspect of the genetic potential of dairy cattle, the most significant measure aimed at increase of milk performance in future will be execution of systematic selection-breeding work in the main population. Special attention should be directed in future to selection of parents of dairy herd, criteria for selection of heifers and their adequate rearing in sense of nutrition and housing. For the purpose of establishing of production potential of first calving Simmental cows in Serbia, data was analyzed for 37.171 Simmental cows with completed lactations in the period 2007 to 2010. Research results showed moderate trend of increase in milk performance in first calving cows - average milk production of 4.348 kg, milk fat content of 3.93% and milk fat yield of 171.1 kg. Milk performance of first calving cows in average was lower by 147 kg compared to cows in other lactations and by 1.169 kg compared to bull dams in the observed period. In analysis of bulls - most common sires of studied first-calvers, it was established that eight of ten bull sires had negative values for milk yield, which indicated the need for better cooperation and organization in work of all services which are included in selection-breeding activities in dairy cattle breeding.
AB  - Govedarstvo Srbije a posebno proizvodnja mleka značajno učestvuju u vrednosti ukupne poljoprivredne (20%) i stočarske proizvodnje (45%). Postignutim tempom rasta prinosa mleka od oko 100 kg po kravi godišnje ne može se adekvatno kompenzovati drastičan pad broja mlečnih grla koji je u protekloj deceniji opao za petinu. Ovo je posebno značajno sa aspekta procena budućih proizvodnih kvota za mleko u priprema Srbije za ulazak u EU. Sa aspekta genetskog potencijala mlečnih krava, najznačajnija mera za povećanja prinosa mleka u narednom periodu je sprovođenje sistematskog odgajivačko-selekcijskog rada u matičnoj populaciji. Izboru roditeljskih parova budućih generacija mlečnog stada, kriterijumima odabira junica i njihovom pravilnom odgoju u smislu ishrane i uslova držanja treba posvetiti primaran značaj. U cilju utvrđivanja proizvodnog potencijala prvotelki simentalske rase u Republici Srbiji analizirani su podaci 37.171 simentalskih krava koje su svoje prve laktacije zaključile u periodu od 2007-2010 godine. Rezultati istraživanja pokazali su umereni trend porasta mlečnosti prvotelki sa ostvarenom prosečnom proizvodnjom od 4.348 kg mleka, sadržajem od 3,93% i prinosom od 171,1 kg mlečne masti. Mlečnost prvotelki u proseku je bila niža za 147 kg od mlečnosti krava u ostalim laktacijama i za 1.169 kg od mlečnosti bikovskih majki u posmatranom periodu. Analizom bikova - najčešćih očeva ispitivanih prvotelki, utvrđeno je da je osam od deset bikova-očeva imalo negativne vrednosti za prinos mleka što upućuje na neophodnost bolje saradnje i organizacije u radu svih službi koje obavljaju odgajivačko-selekcijski rad u mlečnom govedarstvu.
PB  - Institut za stočarstvo, Beograd
T2  - Biotechnology in Animal Husbandry
T1  - Production potential of first calving Simmental heifers in Serbia
T1  - Proizvodni potencijal prvotelki simentalske rase u Srbiji
EP  - 1041
IS  - 3
SP  - 1033
VL  - 27
DO  - 10.2298/BAH1103033N
ER  - 

@article{
author = "Nikšić, Dragan and Ostojić-Andrić, Dušica and Pantelić, Vlada and Perišić, Predrag and Novaković, Ž. and Aleksić, S. and Lazarević, M.",
year = "2011",
abstract = "Cattle production in Serbia, and especially milk production, contributes significantly to the value of total agricultural production (20%) and livestock production (45%). Achieved annual rate of milk yield increase of approx.100 kg per cow cannot adequately compensate for drastic decrease of number of dairy cattle which dropped by fifth over last decade. This is especially important from the aspect of assessment of future production quotas for milk as part of Serbia's preparation for EU accession. From the aspect of the genetic potential of dairy cattle, the most significant measure aimed at increase of milk performance in future will be execution of systematic selection-breeding work in the main population. Special attention should be directed in future to selection of parents of dairy herd, criteria for selection of heifers and their adequate rearing in sense of nutrition and housing. For the purpose of establishing of production potential of first calving Simmental cows in Serbia, data was analyzed for 37.171 Simmental cows with completed lactations in the period 2007 to 2010. Research results showed moderate trend of increase in milk performance in first calving cows - average milk production of 4.348 kg, milk fat content of 3.93% and milk fat yield of 171.1 kg. Milk performance of first calving cows in average was lower by 147 kg compared to cows in other lactations and by 1.169 kg compared to bull dams in the observed period. In analysis of bulls - most common sires of studied first-calvers, it was established that eight of ten bull sires had negative values for milk yield, which indicated the need for better cooperation and organization in work of all services which are included in selection-breeding activities in dairy cattle breeding., Govedarstvo Srbije a posebno proizvodnja mleka značajno učestvuju u vrednosti ukupne poljoprivredne (20%) i stočarske proizvodnje (45%). Postignutim tempom rasta prinosa mleka od oko 100 kg po kravi godišnje ne može se adekvatno kompenzovati drastičan pad broja mlečnih grla koji je u protekloj deceniji opao za petinu. Ovo je posebno značajno sa aspekta procena budućih proizvodnih kvota za mleko u priprema Srbije za ulazak u EU. Sa aspekta genetskog potencijala mlečnih krava, najznačajnija mera za povećanja prinosa mleka u narednom periodu je sprovođenje sistematskog odgajivačko-selekcijskog rada u matičnoj populaciji. Izboru roditeljskih parova budućih generacija mlečnog stada, kriterijumima odabira junica i njihovom pravilnom odgoju u smislu ishrane i uslova držanja treba posvetiti primaran značaj. U cilju utvrđivanja proizvodnog potencijala prvotelki simentalske rase u Republici Srbiji analizirani su podaci 37.171 simentalskih krava koje su svoje prve laktacije zaključile u periodu od 2007-2010 godine. Rezultati istraživanja pokazali su umereni trend porasta mlečnosti prvotelki sa ostvarenom prosečnom proizvodnjom od 4.348 kg mleka, sadržajem od 3,93% i prinosom od 171,1 kg mlečne masti. Mlečnost prvotelki u proseku je bila niža za 147 kg od mlečnosti krava u ostalim laktacijama i za 1.169 kg od mlečnosti bikovskih majki u posmatranom periodu. Analizom bikova - najčešćih očeva ispitivanih prvotelki, utvrđeno je da je osam od deset bikova-očeva imalo negativne vrednosti za prinos mleka što upućuje na neophodnost bolje saradnje i organizacije u radu svih službi koje obavljaju odgajivačko-selekcijski rad u mlečnom govedarstvu.",
publisher = "Institut za stočarstvo, Beograd",
journal = "Biotechnology in Animal Husbandry",
title = "Production potential of first calving Simmental heifers in Serbia, Proizvodni potencijal prvotelki simentalske rase u Srbiji",
pages = "1041-1033",
number = "3",
volume = "27",
doi = "10.2298/BAH1103033N"
}

Nikšić, D., Ostojić-Andrić, D., Pantelić, V., Perišić, P., Novaković, Ž., Aleksić, S.,& Lazarević, M.. (2011). Production potential of first calving Simmental heifers in Serbia. in Biotechnology in Animal Husbandry
Institut za stočarstvo, Beograd., 27(3), 1033-1041.
https://doi.org/10.2298/BAH1103033N

Nikšić D, Ostojić-Andrić D, Pantelić V, Perišić P, Novaković Ž, Aleksić S, Lazarević M. Production potential of first calving Simmental heifers in Serbia. in Biotechnology in Animal Husbandry. 2011;27(3):1033-1041.
doi:10.2298/BAH1103033N .

Nikšić, Dragan, Ostojić-Andrić, Dušica, Pantelić, Vlada, Perišić, Predrag, Novaković, Ž., Aleksić, S., Lazarević, M., "Production potential of first calving Simmental heifers in Serbia" in Biotechnology in Animal Husbandry, 27, no. 3 (2011):1033-1041,
https://doi.org/10.2298/BAH1103033N . .