Trivunović, Snežana

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  • Trivunović, Snežana (6)
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Author's Bibliography

Association between age at first calving and milk production in first lactation on longevity traits in Holstein cows

Kučević, Denis; Trivunović, Snežana; Šoronja, Žika; Janković, Dobrila; Stanojević, Dragan; Djedović, Radica; Papović, Tamara

(Institut za stočarstvo, Beograd, 2020)

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 . .
4

Composition of raw milk from conventional and organic dairy farming

Kučević, Denis; Trivunović, Snežana; Bogdanović, Vladan; Čobanović, Ksenija; Janković, Dobrila; Stanojević, Dragan

(Institut za stočarstvo, Beograd, 2016)

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 . .
13

Influence of microclimatic conditions on the daily production of dairy cows

Kučević, Denis; Plavšić, M.; Trivunović, Snežana; Radinović, M.; Bogdanović, Vladan

(Institut za stočarstvo, Beograd, 2013)

TY  - JOUR
AU  - Kučević, Denis
AU  - Plavšić, M.
AU  - Trivunović, Snežana
AU  - Radinović, M.
AU  - Bogdanović, Vladan
PY  - 2013
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/3203
AB  - The aim of this paper was to determine the microclimatic conditions (ambient temperature and relative humidity) in dairy farm, as well as to evaluate the effect and significance of temperature - humidity index (THI) values on the daily milk yield. The observation of microclimatic parameters was conducted in the period from 9.03.2012 to 6.05.2012. The study included 136 Holstein Friesian cows. The estimation of the effect of THI on daily production of dairy cows was defined by applying fixed-effect statistical model. Average ambient temperature during measuring months amounted to 15.6°C (ranging from 7.2° C to 24.6°C), while the average value of relative humidity was 56.33% (ranging from 40.30% to 81.80%). During the study, the mean value of THI was 58.93 (ranging from 47.08 to 70.13) and didn't exceed the critical comfort level of 72. All tested fixed-factors were statistically affected the daily milk yield (p  lt 0.01). For each unit of increase in the value of the THI, the amount of milk decreased by 0.05344 kg. This confirmed the importance of regular recording of THI values and microclimatic conditions as a unique indicator of thermal stress in dairy farm.
AB  - Cilj ovog rada je bio da se utvrde mikroklimatski uslovi (ambijentalna temperatura i relativna vlažnosti vazduha) i ispita uticaj različitih vrednosti temperaturno - humidnog indeksa (THI) na dnevnu proizvodnju mleka muznih krava. Period posmatranja mikroklimatskih parametara je sproveden u vremenu od 9.03.2012 do 6.05.2012. Ispitivanje je obuhvatilo 136 grla holštajn frizijske rase krava. Za procenu uticaja THI na dnevnu proizvodnju mleka korišten je statistički model sa uticajima fiksnih faktora. Prosečna temperatura ambijenta u toku ogleda je iznosila 15,6°C (kretala se od 7,2° C do 24,6°C) dok je prosečna relativna vlažnost vazduha iznosila 56,33% (kretala se od 40,30% to 81,80%). Za vreme istraživanja prosečna vrednost THI je iznosila 58,93 (kretala se od 47,08 do 70,13) i nije prelazila kritičan nivo komfora od 72. Svi ispitivani fiksni faktori su statistički značajno uticali na prinos mleka (p lt 0,01). Za svaku jedinicu porasta vrednosti THI, količina mleka se smanjivala za 0,05344 kg. Potvrđena je važnost redovnog praćenja THI i mikroklimatskih uslova kao jedinstvenog pokazatelja termalne stresogenosti sredine u kojoj borave krave muzare.
PB  - Institut za stočarstvo, Beograd
T2  - Biotechnology in Animal Husbandry
T1  - Influence of microclimatic conditions on the daily production of dairy cows
T1  - Uticaj mikroklimatskih uslova na dnevnu proizvodnju mleka krava
EP  - 51
IS  - 1
SP  - 45
VL  - 29
DO  - 10.2298/BAH1301045K
ER  - 
@article{
author = "Kučević, Denis and Plavšić, M. and Trivunović, Snežana and Radinović, M. and Bogdanović, Vladan",
year = "2013",
abstract = "The aim of this paper was to determine the microclimatic conditions (ambient temperature and relative humidity) in dairy farm, as well as to evaluate the effect and significance of temperature - humidity index (THI) values on the daily milk yield. The observation of microclimatic parameters was conducted in the period from 9.03.2012 to 6.05.2012. The study included 136 Holstein Friesian cows. The estimation of the effect of THI on daily production of dairy cows was defined by applying fixed-effect statistical model. Average ambient temperature during measuring months amounted to 15.6°C (ranging from 7.2° C to 24.6°C), while the average value of relative humidity was 56.33% (ranging from 40.30% to 81.80%). During the study, the mean value of THI was 58.93 (ranging from 47.08 to 70.13) and didn't exceed the critical comfort level of 72. All tested fixed-factors were statistically affected the daily milk yield (p  lt 0.01). For each unit of increase in the value of the THI, the amount of milk decreased by 0.05344 kg. This confirmed the importance of regular recording of THI values and microclimatic conditions as a unique indicator of thermal stress in dairy farm., Cilj ovog rada je bio da se utvrde mikroklimatski uslovi (ambijentalna temperatura i relativna vlažnosti vazduha) i ispita uticaj različitih vrednosti temperaturno - humidnog indeksa (THI) na dnevnu proizvodnju mleka muznih krava. Period posmatranja mikroklimatskih parametara je sproveden u vremenu od 9.03.2012 do 6.05.2012. Ispitivanje je obuhvatilo 136 grla holštajn frizijske rase krava. Za procenu uticaja THI na dnevnu proizvodnju mleka korišten je statistički model sa uticajima fiksnih faktora. Prosečna temperatura ambijenta u toku ogleda je iznosila 15,6°C (kretala se od 7,2° C do 24,6°C) dok je prosečna relativna vlažnost vazduha iznosila 56,33% (kretala se od 40,30% to 81,80%). Za vreme istraživanja prosečna vrednost THI je iznosila 58,93 (kretala se od 47,08 do 70,13) i nije prelazila kritičan nivo komfora od 72. Svi ispitivani fiksni faktori su statistički značajno uticali na prinos mleka (p lt 0,01). Za svaku jedinicu porasta vrednosti THI, količina mleka se smanjivala za 0,05344 kg. Potvrđena je važnost redovnog praćenja THI i mikroklimatskih uslova kao jedinstvenog pokazatelja termalne stresogenosti sredine u kojoj borave krave muzare.",
publisher = "Institut za stočarstvo, Beograd",
journal = "Biotechnology in Animal Husbandry",
title = "Influence of microclimatic conditions on the daily production of dairy cows, Uticaj mikroklimatskih uslova na dnevnu proizvodnju mleka krava",
pages = "51-45",
number = "1",
volume = "29",
doi = "10.2298/BAH1301045K"
}
Kučević, D., Plavšić, M., Trivunović, S., Radinović, M.,& Bogdanović, V.. (2013). Influence of microclimatic conditions on the daily production of dairy cows. in Biotechnology in Animal Husbandry
Institut za stočarstvo, Beograd., 29(1), 45-51.
https://doi.org/10.2298/BAH1301045K
Kučević D, Plavšić M, Trivunović S, Radinović M, Bogdanović V. Influence of microclimatic conditions on the daily production of dairy cows. in Biotechnology in Animal Husbandry. 2013;29(1):45-51.
doi:10.2298/BAH1301045K .
Kučević, Denis, Plavšić, M., Trivunović, Snežana, Radinović, M., Bogdanović, Vladan, "Influence of microclimatic conditions on the daily production of dairy cows" in Biotechnology in Animal Husbandry, 29, no. 1 (2013):45-51,
https://doi.org/10.2298/BAH1301045K . .
2

An assessment of dairy farm structure and characteristics of dairy production systems in Serbia

Bogdanović, Vladan; Djedović, Radica; Perišić, Predrag; Stanojević, Dragan; Petrović, Milun D.; Trivunović, Snežana; Kučević, Denis; Petrović, Milan M.

(Institut za stočarstvo, Beograd, 2012)

TY  - JOUR
AU  - Bogdanović, Vladan
AU  - Djedović, Radica
AU  - Perišić, Predrag
AU  - Stanojević, Dragan
AU  - Petrović, Milun D.
AU  - Trivunović, Snežana
AU  - Kučević, Denis
AU  - Petrović, Milan M.
PY  - 2012
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/2899
AB  - In order to have a more precise description of dairy farm structure and characteristics of dairy production systems, as well as to assess possibilities for improving production and farming conditions in which milk production is organized, a survey based research was directed at a select group of farms across the Serbia. 1180 questionnaires have been mailed to farmers whose farms are registered for either cattle or mixed production. Questionnaire was divided into 6 sections: general information of the farm, agricultural and structural information, zootechnical information, sanitary and veterinarian information, information about education and extension, and information on the perspectives of future farming. About 59% of analyzed farms have size up to 20 ha, with average size of about 10 ha. On the other hand, about 55% farms raises up to 15 cows and heifers with average of 6 heads per farm, while 3% of farms have more than 200 cows and heifers. Over 86% of surveyed farmers intend to expand existing farm production, mainly by increasing the number of animals, stricter selection and improvement of the conditions for feeding, housing, care and milking. About 75% of farmers have expressed a positive expectation from future membership of Serbia in EU, although these expectations are not clearly defined.
AB  - U cilju preciznijeg opisa strukture mlečnih farmi i karakteristika sistema za proizvodnju mleka, kao i procene mogućnosti za unapređenje proizvodnje i farmskih uslova u kojima se proizvodnja mleka organizuje, sprovedena je anketa među poljoprivrednim proizvođačima (farmerima) širom Srbije. Ukupno je poslato 1180 anketa farmerima čije su farme registrovane za govedarsku ili mešovitu proizvodnju. Upitnik koji je poslat farmerima sastojao se iz 6 delova i obuhvatao je opšte informacije o farmi, poljoprivredne i strukturne informacije, zootehničke informacije, sanitarne i veterinarske aspekte proizvodnje, edukaciju i savetodavstvo, kao i perspektive budućeg poslovanja. Oko 59% analiziranih farmi ima veličinu do 20ha, sa prosekom od oko 10ha. Sa druge strane, na oko 55% farmi odgaja se do 15 krava i junica, sa prosekom od 6 grla po farmi. Preko 86% anketiranih farmera namerava da proširi postojeću proizvodnju i to uglavnom povećanjem broja životinja, strožijom selekcijom roditeljskih parova, kao i unapređenjem uslova ishrane, smeštaja i nege. Oko 75% anketiranih farmera izrazilo je pozitivna očekivanja od budućeg članstva Srbije u EU, iako ta očekivanja nisu uvek jasna ili precizno definisana.
PB  - Institut za stočarstvo, Beograd
T2  - Biotechnology in Animal Husbandry
T1  - An assessment of dairy farm structure and characteristics of dairy production systems in Serbia
T1  - Procena strukture mlečnih farmi i karakteristika sistema za proizvodnju mleka u Srbiji
EP  - 696
IS  - 4
SP  - 689
VL  - 28
DO  - 10.2298/BAH1204689B
ER  - 
@article{
author = "Bogdanović, Vladan and Djedović, Radica and Perišić, Predrag and Stanojević, Dragan and Petrović, Milun D. and Trivunović, Snežana and Kučević, Denis and Petrović, Milan M.",
year = "2012",
abstract = "In order to have a more precise description of dairy farm structure and characteristics of dairy production systems, as well as to assess possibilities for improving production and farming conditions in which milk production is organized, a survey based research was directed at a select group of farms across the Serbia. 1180 questionnaires have been mailed to farmers whose farms are registered for either cattle or mixed production. Questionnaire was divided into 6 sections: general information of the farm, agricultural and structural information, zootechnical information, sanitary and veterinarian information, information about education and extension, and information on the perspectives of future farming. About 59% of analyzed farms have size up to 20 ha, with average size of about 10 ha. On the other hand, about 55% farms raises up to 15 cows and heifers with average of 6 heads per farm, while 3% of farms have more than 200 cows and heifers. Over 86% of surveyed farmers intend to expand existing farm production, mainly by increasing the number of animals, stricter selection and improvement of the conditions for feeding, housing, care and milking. About 75% of farmers have expressed a positive expectation from future membership of Serbia in EU, although these expectations are not clearly defined., U cilju preciznijeg opisa strukture mlečnih farmi i karakteristika sistema za proizvodnju mleka, kao i procene mogućnosti za unapređenje proizvodnje i farmskih uslova u kojima se proizvodnja mleka organizuje, sprovedena je anketa među poljoprivrednim proizvođačima (farmerima) širom Srbije. Ukupno je poslato 1180 anketa farmerima čije su farme registrovane za govedarsku ili mešovitu proizvodnju. Upitnik koji je poslat farmerima sastojao se iz 6 delova i obuhvatao je opšte informacije o farmi, poljoprivredne i strukturne informacije, zootehničke informacije, sanitarne i veterinarske aspekte proizvodnje, edukaciju i savetodavstvo, kao i perspektive budućeg poslovanja. Oko 59% analiziranih farmi ima veličinu do 20ha, sa prosekom od oko 10ha. Sa druge strane, na oko 55% farmi odgaja se do 15 krava i junica, sa prosekom od 6 grla po farmi. Preko 86% anketiranih farmera namerava da proširi postojeću proizvodnju i to uglavnom povećanjem broja životinja, strožijom selekcijom roditeljskih parova, kao i unapređenjem uslova ishrane, smeštaja i nege. Oko 75% anketiranih farmera izrazilo je pozitivna očekivanja od budućeg članstva Srbije u EU, iako ta očekivanja nisu uvek jasna ili precizno definisana.",
publisher = "Institut za stočarstvo, Beograd",
journal = "Biotechnology in Animal Husbandry",
title = "An assessment of dairy farm structure and characteristics of dairy production systems in Serbia, Procena strukture mlečnih farmi i karakteristika sistema za proizvodnju mleka u Srbiji",
pages = "696-689",
number = "4",
volume = "28",
doi = "10.2298/BAH1204689B"
}
Bogdanović, V., Djedović, R., Perišić, P., Stanojević, D., Petrović, M. D., Trivunović, S., Kučević, D.,& Petrović, M. M.. (2012). An assessment of dairy farm structure and characteristics of dairy production systems in Serbia. in Biotechnology in Animal Husbandry
Institut za stočarstvo, Beograd., 28(4), 689-696.
https://doi.org/10.2298/BAH1204689B
Bogdanović V, Djedović R, Perišić P, Stanojević D, Petrović MD, Trivunović S, Kučević D, Petrović MM. An assessment of dairy farm structure and characteristics of dairy production systems in Serbia. in Biotechnology in Animal Husbandry. 2012;28(4):689-696.
doi:10.2298/BAH1204689B .
Bogdanović, Vladan, Djedović, Radica, Perišić, Predrag, Stanojević, Dragan, Petrović, Milun D., Trivunović, Snežana, Kučević, Denis, Petrović, Milan M., "An assessment of dairy farm structure and characteristics of dairy production systems in Serbia" in Biotechnology in Animal Husbandry, 28, no. 4 (2012):689-696,
https://doi.org/10.2298/BAH1204689B . .
7

Evaluation of breeding values of bulls for somatic cell count in milk

Radinović, M.; Trivunović, Snežana; Kučević, Denis; Djedović, Radica; Bogdanović, Vladan

(Institut za stočarstvo, Beograd, 2011)

TY  - JOUR
AU  - Radinović, M.
AU  - Trivunović, Snežana
AU  - Kučević, Denis
AU  - Djedović, Radica
AU  - Bogdanović, Vladan
PY  - 2011
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/2471
AB  - The incidence of subclinical and clinical mastitis in the mammary gland produces variety of defensive factors were nuclear leukocytes, lymphocytes and macrophages play an important role and they are marked as somatic cells. Somatic cell count depends on the type of pathogen and stage of infection. Increased number of somatic cells in milk occurs as a result of lesions in the mammary gland. Studies have shown that the somatic cells count is genetically predisposed. Although the heritability of this trait is low, using modern methods and the proper selection of work it is possible to achieve some progress. Therefore it is necessary to the selection of bulls for somatic cells, on the basis of somatic cells in milk of daughters. Data on milk yield and somatic cell count in milk of 247 cows Holstein Friesian and Simmental breed from Vojvodina province, were used to analyze the evaluation of breeding values for somatic cells in milk Average values and variability of somatic cells, milk yield, milk fat yield and protein and content of milk fat and protein were determined. The average number of somatic cells was 317 000 per ml of milk, with high variability. Average milk yield of 7 634kg with an average content and yield of milk fat from 3.74% to 285.69 kg and the average protein content and yield of 3.15% and 237.15 kg were determined. Assessment of breeding values was calculated using BLUP model of father, high variability in the assessment of bulls was found. Getting more accurate breeding values is possible using the Animal Model.
AB  - Kod pojave subkliničkog i kliničkog mastitisa mlečna žlezda produkuje mnoštvo odbrambenih faktora od kojih značajnu ulogu imaju polimorfo nuklearni leukociti, limfociti i makrofage koje označavamo kao somatske ćelije. Broj somatskih ćelija zavisi od vrste uzročnika i stadijuma infekcije. Povećan broj somatskih ćelija u mleku javlja se kao posledica lezija na mlečnoj žlezdi. Istraživanja su pokazala da je broj somatskih ćelija genetski predisponiran. Iako je heritabilnost za ovu osobinu niska, uz pomoć savremenih metoda i pravilnog selekcijskog rada moguće je postići određeni genetski napredak. Zbog toga je potrebno vršiti selekciju bikova za broj somatskih ćelija i to na osnovu broja somatskih ćelija u mleku ćerki. Podaci o mlečnosti i broju somatskih ćelija u mleku kod 247 krava holštajn-frizijske i simentalske rase sa teritorije Vojvodine, korišćeni su za analizu ocene oplemenjivačke vrednosti za broj somatskih ćelija u mleku krava. Izračunate su prosečne vrednosti i varijabilnost broja somatskih ćelija, prinosa mleka, prinosa mlečne masti i proteina i sadržaja mlečne masti i proteina. Prosečan broj somatskih ćelija u ml iznosio je 317 000, sa velikom varijabilnošću. Utvrđen je prosečan prinos mleka od 7634 kg uz prosečan sadržaj i prinos mlečne masti od 3,74% i 285,69kg i prosečan sadržaj i prinos proteina od 3,15% i 237,15 kg. Ocena oplemenjivačke vrednosti je izračunata primenom BLUP modela oca, utvrđena je velika varijabilnost u oceni priplodnjaka. Dobijanje preciznije oplemenjivačke vrednosti moguće je primenom Animal Modela.
PB  - Institut za stočarstvo, Beograd
T2  - Biotechnology in Animal Husbandry
T1  - Evaluation of breeding values of bulls for somatic cell count in milk
T1  - Ocena oplemenjivačke vrednosti bikova za broj somatskih ćelija u mleku
EP  - 1066
IS  - 3
SP  - 1059
VL  - 27
DO  - 10.2298/BAH1103059R
ER  - 
@article{
author = "Radinović, M. and Trivunović, Snežana and Kučević, Denis and Djedović, Radica and Bogdanović, Vladan",
year = "2011",
abstract = "The incidence of subclinical and clinical mastitis in the mammary gland produces variety of defensive factors were nuclear leukocytes, lymphocytes and macrophages play an important role and they are marked as somatic cells. Somatic cell count depends on the type of pathogen and stage of infection. Increased number of somatic cells in milk occurs as a result of lesions in the mammary gland. Studies have shown that the somatic cells count is genetically predisposed. Although the heritability of this trait is low, using modern methods and the proper selection of work it is possible to achieve some progress. Therefore it is necessary to the selection of bulls for somatic cells, on the basis of somatic cells in milk of daughters. Data on milk yield and somatic cell count in milk of 247 cows Holstein Friesian and Simmental breed from Vojvodina province, were used to analyze the evaluation of breeding values for somatic cells in milk Average values and variability of somatic cells, milk yield, milk fat yield and protein and content of milk fat and protein were determined. The average number of somatic cells was 317 000 per ml of milk, with high variability. Average milk yield of 7 634kg with an average content and yield of milk fat from 3.74% to 285.69 kg and the average protein content and yield of 3.15% and 237.15 kg were determined. Assessment of breeding values was calculated using BLUP model of father, high variability in the assessment of bulls was found. Getting more accurate breeding values is possible using the Animal Model., Kod pojave subkliničkog i kliničkog mastitisa mlečna žlezda produkuje mnoštvo odbrambenih faktora od kojih značajnu ulogu imaju polimorfo nuklearni leukociti, limfociti i makrofage koje označavamo kao somatske ćelije. Broj somatskih ćelija zavisi od vrste uzročnika i stadijuma infekcije. Povećan broj somatskih ćelija u mleku javlja se kao posledica lezija na mlečnoj žlezdi. Istraživanja su pokazala da je broj somatskih ćelija genetski predisponiran. Iako je heritabilnost za ovu osobinu niska, uz pomoć savremenih metoda i pravilnog selekcijskog rada moguće je postići određeni genetski napredak. Zbog toga je potrebno vršiti selekciju bikova za broj somatskih ćelija i to na osnovu broja somatskih ćelija u mleku ćerki. Podaci o mlečnosti i broju somatskih ćelija u mleku kod 247 krava holštajn-frizijske i simentalske rase sa teritorije Vojvodine, korišćeni su za analizu ocene oplemenjivačke vrednosti za broj somatskih ćelija u mleku krava. Izračunate su prosečne vrednosti i varijabilnost broja somatskih ćelija, prinosa mleka, prinosa mlečne masti i proteina i sadržaja mlečne masti i proteina. Prosečan broj somatskih ćelija u ml iznosio je 317 000, sa velikom varijabilnošću. Utvrđen je prosečan prinos mleka od 7634 kg uz prosečan sadržaj i prinos mlečne masti od 3,74% i 285,69kg i prosečan sadržaj i prinos proteina od 3,15% i 237,15 kg. Ocena oplemenjivačke vrednosti je izračunata primenom BLUP modela oca, utvrđena je velika varijabilnost u oceni priplodnjaka. Dobijanje preciznije oplemenjivačke vrednosti moguće je primenom Animal Modela.",
publisher = "Institut za stočarstvo, Beograd",
journal = "Biotechnology in Animal Husbandry",
title = "Evaluation of breeding values of bulls for somatic cell count in milk, Ocena oplemenjivačke vrednosti bikova za broj somatskih ćelija u mleku",
pages = "1066-1059",
number = "3",
volume = "27",
doi = "10.2298/BAH1103059R"
}
Radinović, M., Trivunović, S., Kučević, D., Djedović, R.,& Bogdanović, V.. (2011). Evaluation of breeding values of bulls for somatic cell count in milk. in Biotechnology in Animal Husbandry
Institut za stočarstvo, Beograd., 27(3), 1059-1066.
https://doi.org/10.2298/BAH1103059R
Radinović M, Trivunović S, Kučević D, Djedović R, Bogdanović V. Evaluation of breeding values of bulls for somatic cell count in milk. in Biotechnology in Animal Husbandry. 2011;27(3):1059-1066.
doi:10.2298/BAH1103059R .
Radinović, M., Trivunović, Snežana, Kučević, Denis, Djedović, Radica, Bogdanović, Vladan, "Evaluation of breeding values of bulls for somatic cell count in milk" in Biotechnology in Animal Husbandry, 27, no. 3 (2011):1059-1066,
https://doi.org/10.2298/BAH1103059R . .

The effect of the farm size on milk traits of cows

Kučević, Denis; Trivunović, Snežana; Radinović, M.; Plavšić, M.; Skalicki, Z.; Perišić, Predrag

(Institut za stočarstvo, Beograd, 2011)

TY  - JOUR
AU  - Kučević, Denis
AU  - Trivunović, Snežana
AU  - Radinović, M.
AU  - Plavšić, M.
AU  - Skalicki, Z.
AU  - Perišić, Predrag
PY  - 2011
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/2552
AB  - Objective of this study was to analyze the effect of the dairy farm on milk traits of cows in Vojvodina. The research was carried out on small farms with 10 to 20 cows, medium farms with 20 to 50 cows, and large farms with over 50 dairy cows. The study included registered animals of Simmental (SM) and Holstein-Friesian breed (HF; including Red Holstein) in the first lactation for traits of milk yield and yield and content of milk fat. Total of 1323 first lactations were analyzed. The average milk yield (both breeds) in the first lactation of 305 days was 6295 kg of milk with 234,3 kg of milk fat and average milk fat content of 3,74%. Milk performance of cows varied significantly (CV=22,9% and SD=1447,8), as well as milk fat yield (CV=21,6% and SD=50,8). Large farms produced in average 6534 kg of milk, medium farms 6347kg and small farms 4717kg. Size of the farm exhibited significantly high effect on all observed traits, and the tendency was that farms with higher number of animals realize also higher average of production. Farm management and various breeding-zootechnical conditions present on farms had significant effect on milk performance of cows.
AB  - Cilj rada je da se ispita uticaj veličine govedarske farme na osobine mlečnosti u Vojvodini. U odnosu na veličinu farme, ispitivanje je sprovedeno na malim farmama sa 10 do 20 krava, srednje velikim od 20 do 50 i velikim sa preko 50 krava. Ispitivanje je obuhvatilo umatičena grla simentalske (SM) i holštajnfrizijske rase (HF; uključujući i crveni holštajn) u prvoj laktaciji za osobine prinosa mleka, mlečne masti i sadržaja mlečne masti. Ukupno je analizirano 1323 prvih laktacija. Prosečna mlečnost krava (obe rase) u prvoj laktaciji za 305 dana je iznosila 6295 kg mleka sa 234,3 kg mlečne masti i prosečnim sadržajem masti od 3,74%. Mlečnosti krava je značajno varirala (CV=22,9% i SD=1447,8) kao i prinos mlečne masti (CV=21,6% i SD=50,8). Velike farme su prosečno proizvele 6534 kg, srednje 6347 kg i male 4717 kg. Veličina farme je ispoljila signifikantno visok uticaj na sve posmatrane osobine a tendencija je da se na farmama sa većim brojem grla ostvaruje prosečno veća proizvodnja. Farmski menadžment i različiti odgajivačko zootehnički uslovi na farmama su ostvarili značajan uticaj na mlečnost krava.
PB  - Institut za stočarstvo, Beograd
T2  - Biotechnology in Animal Husbandry
T1  - The effect of the farm size on milk traits of cows
T1  - Uticaj veličine farmi na osobine mlečnosti krava
EP  - 958
IS  - 3
SP  - 951
VL  - 27
DO  - 10.2298/BAH1103951K
ER  - 
@article{
author = "Kučević, Denis and Trivunović, Snežana and Radinović, M. and Plavšić, M. and Skalicki, Z. and Perišić, Predrag",
year = "2011",
abstract = "Objective of this study was to analyze the effect of the dairy farm on milk traits of cows in Vojvodina. The research was carried out on small farms with 10 to 20 cows, medium farms with 20 to 50 cows, and large farms with over 50 dairy cows. The study included registered animals of Simmental (SM) and Holstein-Friesian breed (HF; including Red Holstein) in the first lactation for traits of milk yield and yield and content of milk fat. Total of 1323 first lactations were analyzed. The average milk yield (both breeds) in the first lactation of 305 days was 6295 kg of milk with 234,3 kg of milk fat and average milk fat content of 3,74%. Milk performance of cows varied significantly (CV=22,9% and SD=1447,8), as well as milk fat yield (CV=21,6% and SD=50,8). Large farms produced in average 6534 kg of milk, medium farms 6347kg and small farms 4717kg. Size of the farm exhibited significantly high effect on all observed traits, and the tendency was that farms with higher number of animals realize also higher average of production. Farm management and various breeding-zootechnical conditions present on farms had significant effect on milk performance of cows., Cilj rada je da se ispita uticaj veličine govedarske farme na osobine mlečnosti u Vojvodini. U odnosu na veličinu farme, ispitivanje je sprovedeno na malim farmama sa 10 do 20 krava, srednje velikim od 20 do 50 i velikim sa preko 50 krava. Ispitivanje je obuhvatilo umatičena grla simentalske (SM) i holštajnfrizijske rase (HF; uključujući i crveni holštajn) u prvoj laktaciji za osobine prinosa mleka, mlečne masti i sadržaja mlečne masti. Ukupno je analizirano 1323 prvih laktacija. Prosečna mlečnost krava (obe rase) u prvoj laktaciji za 305 dana je iznosila 6295 kg mleka sa 234,3 kg mlečne masti i prosečnim sadržajem masti od 3,74%. Mlečnosti krava je značajno varirala (CV=22,9% i SD=1447,8) kao i prinos mlečne masti (CV=21,6% i SD=50,8). Velike farme su prosečno proizvele 6534 kg, srednje 6347 kg i male 4717 kg. Veličina farme je ispoljila signifikantno visok uticaj na sve posmatrane osobine a tendencija je da se na farmama sa većim brojem grla ostvaruje prosečno veća proizvodnja. Farmski menadžment i različiti odgajivačko zootehnički uslovi na farmama su ostvarili značajan uticaj na mlečnost krava.",
publisher = "Institut za stočarstvo, Beograd",
journal = "Biotechnology in Animal Husbandry",
title = "The effect of the farm size on milk traits of cows, Uticaj veličine farmi na osobine mlečnosti krava",
pages = "958-951",
number = "3",
volume = "27",
doi = "10.2298/BAH1103951K"
}
Kučević, D., Trivunović, S., Radinović, M., Plavšić, M., Skalicki, Z.,& Perišić, P.. (2011). The effect of the farm size on milk traits of cows. in Biotechnology in Animal Husbandry
Institut za stočarstvo, Beograd., 27(3), 951-958.
https://doi.org/10.2298/BAH1103951K
Kučević D, Trivunović S, Radinović M, Plavšić M, Skalicki Z, Perišić P. The effect of the farm size on milk traits of cows. in Biotechnology in Animal Husbandry. 2011;27(3):951-958.
doi:10.2298/BAH1103951K .
Kučević, Denis, Trivunović, Snežana, Radinović, M., Plavšić, M., Skalicki, Z., Perišić, Predrag, "The effect of the farm size on milk traits of cows" in Biotechnology in Animal Husbandry, 27, no. 3 (2011):951-958,
https://doi.org/10.2298/BAH1103951K . .
3