TY  - JOUR
AU  - Stojić, P.
AU  - Beskorovajni, Radica
AU  - Pantelić, Vlada
AU  - Novaković, Željko
AU  - Bojković-Kovačević, S.
AU  - Stanojević, D.
PY  - 2013
UR  - http://r.istocar.bg.ac.rs/handle/123456789/386
AB  - It is general knowledge that management influences results in cattle production to the highest extent, and that the culling of cows is a very good indicator of the success of farm management. A comparison of results of culling for first calving cows on farms with various levels of production in 2011 established differences both for the number of culled animals and the reasons for culling. On farms with higher levels of production, the share of first calving cows in overall culling was 25.9% or 4.5% less than on farms with a lower level of production, i.e. 4.8% less died, and 0.7% first calving cows had to be slaughtered, while 5.6% more first calving cows were culled for economic reasons. At both levels of production, dominant reasons for culling were diseases of the legs and hoofs, which can be linked to the tie stall system (more pronounced on farms with higher production) and metabolic disorders (more dominant on farms with lower production). Reproduction was a more considerable problem on farms with higher milk production, while culling due to selection was more pronounced on farms with lower production. In early lactation of first calving cows, regardless of the level of production, dominant reasons for culling on farms are leg and hoof problems and metabolic disorders (total: 55% i.e. 55.9%). When reasons for culling of first calving cows after 100 days of lactation are investigated, on farms with high production the significance of diseases of legs and hoofs remains almost unchanged, but culling due to reproduction grows to 28%. On farms with lower production, culling due to leg and hoof diseases is considerably reduced after 100 days of lactation, however culling due to selection is tripled (62%).
AB  - Opšte je poznato da menadžment u najvećoj meri utiče na rezultate u govedarskoj proizvodnji, a izlučenja krava su vrlo kvalitetan pokazatelj uspešnosti upravljanja farmama. Poredeći rezultate izlučenja prvotelki na farmama sa različitim nivoom proizvodnje u toku 2011. god. ustanovljene su razlike i u broju izlučenih grla, ali i u razlozima izlučenja. Na farmama sa višim nivoom proizvodnje učešće prvotelki u ukupnim izlučenjima bilo je 25.9% što je za 4.5% manje nego na farmama sa nižim nivoom proizvodnje, odnosno uginulo je za 4,8% manje i prinudno je zaklano za 0,7% manje prvotelki, a iz ekonomskih razloga izlučeno za 5.6% prvotelki više. Na oba nivoa proizvodnje dominantni razlozi izlučenja su bili oboljenja nogu i papaka što se može dovesti u vezu sa vezanim sistemom držanja (izraženije na farmama sa većom proizvodnjom) i metabolički poremećaji (dominantnije izraženi na farmama sa nižom proizvodnjom). Reprodukcija je bila znatniji problem na farmama sa većom proizvodnjom mleka, odnosno selekcijska izlučenja na farmama sa nižom proizvodnjom. U ranoj laktaciji prvotelki, bez obzira na nivo proizvodnje, na farmama kao razlozi izlučenja dominiraju problemi sa nogama i papcima i metabolički poremečaji (ukupno 55% tj. 55.9%). Kada se posmatraju razlozi izlučenja prvotelki nakon 100 dana laktacije, na farmama sa visokom proizvodnjom značaj obolenja nogu i papaka je gotovo nepromenjen, ali izlučenja usled reprodukcije rastu na 28%. Na farmama sa nižom proizvodnjom, izlučenja usled oboljenja nogu i papaka su znatno smanjena nakon 100 dana laktacije, ali je zato utrostručen broj izlučenih iz selekcijskih razloga (62%).
PB  - Institute for Animal Husbandry, Belgrade
T2  - Biotechnology in Animal Husbandry
T1  - Causes for culling first calving cows on farms with different levels of production
T1  - Uzroci izlučenja prvotelki na farmama sa različitim nivoom proizvodnje
VL  - 29
IS  - 2
SP  - 259
EP  - 267
DO  - 10.2298/BAH1302259S
ER  - 

@article{
author = "Stojić, P. and Beskorovajni, Radica and Pantelić, Vlada and Novaković, Željko and Bojković-Kovačević, S. and Stanojević, D.",
year = "2013",
abstract = "It is general knowledge that management influences results in cattle production to the highest extent, and that the culling of cows is a very good indicator of the success of farm management. A comparison of results of culling for first calving cows on farms with various levels of production in 2011 established differences both for the number of culled animals and the reasons for culling. On farms with higher levels of production, the share of first calving cows in overall culling was 25.9% or 4.5% less than on farms with a lower level of production, i.e. 4.8% less died, and 0.7% first calving cows had to be slaughtered, while 5.6% more first calving cows were culled for economic reasons. At both levels of production, dominant reasons for culling were diseases of the legs and hoofs, which can be linked to the tie stall system (more pronounced on farms with higher production) and metabolic disorders (more dominant on farms with lower production). Reproduction was a more considerable problem on farms with higher milk production, while culling due to selection was more pronounced on farms with lower production. In early lactation of first calving cows, regardless of the level of production, dominant reasons for culling on farms are leg and hoof problems and metabolic disorders (total: 55% i.e. 55.9%). When reasons for culling of first calving cows after 100 days of lactation are investigated, on farms with high production the significance of diseases of legs and hoofs remains almost unchanged, but culling due to reproduction grows to 28%. On farms with lower production, culling due to leg and hoof diseases is considerably reduced after 100 days of lactation, however culling due to selection is tripled (62%)., Opšte je poznato da menadžment u najvećoj meri utiče na rezultate u govedarskoj proizvodnji, a izlučenja krava su vrlo kvalitetan pokazatelj uspešnosti upravljanja farmama. Poredeći rezultate izlučenja prvotelki na farmama sa različitim nivoom proizvodnje u toku 2011. god. ustanovljene su razlike i u broju izlučenih grla, ali i u razlozima izlučenja. Na farmama sa višim nivoom proizvodnje učešće prvotelki u ukupnim izlučenjima bilo je 25.9% što je za 4.5% manje nego na farmama sa nižim nivoom proizvodnje, odnosno uginulo je za 4,8% manje i prinudno je zaklano za 0,7% manje prvotelki, a iz ekonomskih razloga izlučeno za 5.6% prvotelki više. Na oba nivoa proizvodnje dominantni razlozi izlučenja su bili oboljenja nogu i papaka što se može dovesti u vezu sa vezanim sistemom držanja (izraženije na farmama sa većom proizvodnjom) i metabolički poremećaji (dominantnije izraženi na farmama sa nižom proizvodnjom). Reprodukcija je bila znatniji problem na farmama sa većom proizvodnjom mleka, odnosno selekcijska izlučenja na farmama sa nižom proizvodnjom. U ranoj laktaciji prvotelki, bez obzira na nivo proizvodnje, na farmama kao razlozi izlučenja dominiraju problemi sa nogama i papcima i metabolički poremečaji (ukupno 55% tj. 55.9%). Kada se posmatraju razlozi izlučenja prvotelki nakon 100 dana laktacije, na farmama sa visokom proizvodnjom značaj obolenja nogu i papaka je gotovo nepromenjen, ali izlučenja usled reprodukcije rastu na 28%. Na farmama sa nižom proizvodnjom, izlučenja usled oboljenja nogu i papaka su znatno smanjena nakon 100 dana laktacije, ali je zato utrostručen broj izlučenih iz selekcijskih razloga (62%).",
publisher = "Institute for Animal Husbandry, Belgrade",
journal = "Biotechnology in Animal Husbandry",
title = "Causes for culling first calving cows on farms with different levels of production, Uzroci izlučenja prvotelki na farmama sa različitim nivoom proizvodnje",
volume = "29",
number = "2",
pages = "259-267",
doi = "10.2298/BAH1302259S"
}

Stojić, P., Beskorovajni, R., Pantelić, V., Novaković, Ž., Bojković-Kovačević, S.,& Stanojević, D.. (2013). Causes for culling first calving cows on farms with different levels of production. in Biotechnology in Animal Husbandry
Institute for Animal Husbandry, Belgrade., 29(2), 259-267.
https://doi.org/10.2298/BAH1302259S

Stojić P, Beskorovajni R, Pantelić V, Novaković Ž, Bojković-Kovačević S, Stanojević D. Causes for culling first calving cows on farms with different levels of production. in Biotechnology in Animal Husbandry. 2013;29(2):259-267.
doi:10.2298/BAH1302259S .

Stojić, P., Beskorovajni, Radica, Pantelić, Vlada, Novaković, Željko, Bojković-Kovačević, S., Stanojević, D., "Causes for culling first calving cows on farms with different levels of production" in Biotechnology in Animal Husbandry, 29, no. 2 (2013):259-267,
https://doi.org/10.2298/BAH1302259S . .

TY  - JOUR
AU  - Stojić, P.
AU  - Bojković-Kovačević, S.
AU  - Beskorovajni, Radica
AU  - Jeremić, I.
AU  - Pantelić, Vlada
PY  - 2012
UR  - http://r.istocar.bg.ac.rs/handle/123456789/335
AB  - Causes for cow culling in a tie stall system were investigated on a sample of 3060 cows culled in 2011, on seven large dairy farms in the Belgrade region. The total level of culling was 34.58% of the average number of cows. The number of cows culled decreased with lactation order (from 981 cows in the first to 294 cows in the sixth and later lactations). The most dominant cause for culling were diseases of the legs and hooves (28.4%), as was expected, having in mind the tie stall system. If selection (low production) is abstracted as the reason for culling, what stands out by importance are metabolic diseases (15.7%) and problems of reproduction (reproductive diseases - 8.6%, and difficult calvings and abortions 5.7%). With the increase of duration of the lactation during which cows were culled, reproductive diseases gained importance as the reason for culling, while the importance of metabolic diseases and diseases of the legs and hooves in this context decreased. When culled, on the average, cows were 5.2 years old, having on the average spent 1112 days in production, of which 978 days in milking. Their average milk production per day of milking was 22.00 kg, per day of life 10.6 kg, and per day of production 19.8 kg.
AB  - Ispitivanje uzroka izlučenja krava u vezanom sistemu držanja izvršeno je na uzorku 3060 izlučenih krava tokom 2011. godine na sedam velikih farmi za proizvodnju mleka u Beogradskom regionu. Ukupna stopa izlučenih krava iznosila je 34,58% od prosečnog broja krava. Broj izlučenih krava se smanjivao sa porastom laktacije po redu (od 981 krave u prvoj do 294 krave u šestoj i ostalim laktacijama). Najdominantniji uzrok izlučenja su bila oboljenja nogu i papaka (28,43%), što je i očekivano s obzirom na vezani sistem držanja. Ako se izuzmu selekcijski razlozi (niska proizvodnja), kao razlozi izlučenja po značaju se izdvajaju metaboličke bolesti (15,72%) i problemi sa reprodukcijom (reproduktivne bolesti - 8,63% i težina telenja i abortusi 5,65%). Sa porastom trajanja laktacije u kojoj su krave izlučene, reproduktivne bolesti su sve više dobijale na značaju kao razlog izlučenja, a metaboličke bolesti i bolesti nogu i papaka gubile. U momentu izlučenja krave su u proseku bile stare 5,18 god. i u proizvodnji su prosečno provele 1112 dana, od toga 978 dana u muži. Njihova prosečna proizvodnja mleka po danu u muži je bila 21,96 kg, po danu života 10,63kg i po produktivnom danu 19,75 kg.
PB  - Institute for Animal Husbandry, Belgrade
T2  - Biotechnology in Animal Husbandry
T1  - Causes of cow culling in the tie stall system
T1  - Uzroci izlučenja krava u vezanom sistemu držanja
VL  - 28
IS  - 4
SP  - 697
EP  - 704
DO  - 10.2298/BAH1204697S
ER  - 

@article{
author = "Stojić, P. and Bojković-Kovačević, S. and Beskorovajni, Radica and Jeremić, I. and Pantelić, Vlada",
year = "2012",
abstract = "Causes for cow culling in a tie stall system were investigated on a sample of 3060 cows culled in 2011, on seven large dairy farms in the Belgrade region. The total level of culling was 34.58% of the average number of cows. The number of cows culled decreased with lactation order (from 981 cows in the first to 294 cows in the sixth and later lactations). The most dominant cause for culling were diseases of the legs and hooves (28.4%), as was expected, having in mind the tie stall system. If selection (low production) is abstracted as the reason for culling, what stands out by importance are metabolic diseases (15.7%) and problems of reproduction (reproductive diseases - 8.6%, and difficult calvings and abortions 5.7%). With the increase of duration of the lactation during which cows were culled, reproductive diseases gained importance as the reason for culling, while the importance of metabolic diseases and diseases of the legs and hooves in this context decreased. When culled, on the average, cows were 5.2 years old, having on the average spent 1112 days in production, of which 978 days in milking. Their average milk production per day of milking was 22.00 kg, per day of life 10.6 kg, and per day of production 19.8 kg., Ispitivanje uzroka izlučenja krava u vezanom sistemu držanja izvršeno je na uzorku 3060 izlučenih krava tokom 2011. godine na sedam velikih farmi za proizvodnju mleka u Beogradskom regionu. Ukupna stopa izlučenih krava iznosila je 34,58% od prosečnog broja krava. Broj izlučenih krava se smanjivao sa porastom laktacije po redu (od 981 krave u prvoj do 294 krave u šestoj i ostalim laktacijama). Najdominantniji uzrok izlučenja su bila oboljenja nogu i papaka (28,43%), što je i očekivano s obzirom na vezani sistem držanja. Ako se izuzmu selekcijski razlozi (niska proizvodnja), kao razlozi izlučenja po značaju se izdvajaju metaboličke bolesti (15,72%) i problemi sa reprodukcijom (reproduktivne bolesti - 8,63% i težina telenja i abortusi 5,65%). Sa porastom trajanja laktacije u kojoj su krave izlučene, reproduktivne bolesti su sve više dobijale na značaju kao razlog izlučenja, a metaboličke bolesti i bolesti nogu i papaka gubile. U momentu izlučenja krave su u proseku bile stare 5,18 god. i u proizvodnji su prosečno provele 1112 dana, od toga 978 dana u muži. Njihova prosečna proizvodnja mleka po danu u muži je bila 21,96 kg, po danu života 10,63kg i po produktivnom danu 19,75 kg.",
publisher = "Institute for Animal Husbandry, Belgrade",
journal = "Biotechnology in Animal Husbandry",
title = "Causes of cow culling in the tie stall system, Uzroci izlučenja krava u vezanom sistemu držanja",
volume = "28",
number = "4",
pages = "697-704",
doi = "10.2298/BAH1204697S"
}

Stojić, P., Bojković-Kovačević, S., Beskorovajni, R., Jeremić, I.,& Pantelić, V.. (2012). Causes of cow culling in the tie stall system. in Biotechnology in Animal Husbandry
Institute for Animal Husbandry, Belgrade., 28(4), 697-704.
https://doi.org/10.2298/BAH1204697S

Stojić P, Bojković-Kovačević S, Beskorovajni R, Jeremić I, Pantelić V. Causes of cow culling in the tie stall system. in Biotechnology in Animal Husbandry. 2012;28(4):697-704.
doi:10.2298/BAH1204697S .

Stojić, P., Bojković-Kovačević, S., Beskorovajni, Radica, Jeremić, I., Pantelić, Vlada, "Causes of cow culling in the tie stall system" in Biotechnology in Animal Husbandry, 28, no. 4 (2012):697-704,
https://doi.org/10.2298/BAH1204697S . .

TY  - JOUR
AU  - Pantelić, Vlada
AU  - Aleksić, S.
AU  - Stojić, P.
AU  - Đurđević, R.
AU  - Samolovac, Ljiljana
AU  - Janković, D.
AU  - Nikšić, Dragan
PY  - 2010
UR  - http://r.istocar.bg.ac.rs/handle/123456789/240
AB  - Cows which represent top of the genetic value of the population in regard to their traits are chosen for bull dams. Selection is based on origin, production performance (quantity of milk, milk fat and protein content), milking/dairy traits, reproductive indicators, exterior and linear type scores. This study included 292 cows of Simmental breed selected for bull dams on the territory of Republic of Serbia during one year. Selection of cows for herd of bull dams was done after finalized first and subsequent lactation. In this study, the effect of region and year of calving on milk traits is presented. Applying the method of least squares average value of milk production was obtained - 5.754,49 kg, milk fat content - 3,98% and quantity of milk fat - 230,24 kg. Regions had statistically highly significant effect (P (lt) 0,01) on all investigated milk traits. Year of calving showed no statistically significant effect on milk yield, yield of milk fat and content of milk fat (P>0,05).
AB  - Za bikovske majke se odabiraju krave koje prema osobinama predstavljaju vrh genetske vrednosti populacije. Izbor se vrši na osnovu porekla, proizvodnih osobina (količina mleka, sadržaj mlečne masti i proteina), muznih osobina, reproduktivnih pokazatelja, eksterijera i linearnih ocena tipa. Ovim istraživanjem je obuhvaćeno 292 krave simentalske rase odabrane za bikovske majke na području Republike Srbije u toku godine. Odabiranje krava u zapat bikovskih majki izvršeno je posle završene prve, odnosno na osnovu sledećih laktacija. U radu je ispitan uticaj odgajivačkog područja i godine telenja na osobine mlečnosti. Koristeći metod najmanjih kvadrata dobijene su prosečne vrednosti proizvodnje mleka 5.754,49 kg, sadržaja mlečne masti 3,98% i količine mlečne masti 230,24 kg. Regioni su imali statistički visoko značajan uticaj (P (lt) 0,01) na sve ispitivane osobine mlečnosti. Na osobine prinosa mleka, mlečne masti i sadržaja mlečne masti, godina telenja nije ispoljila statistički značajan uticaj (P>0,05).
PB  - Institute for Animal Husbandry, Belgrade
T2  - Biotechnology in Animal Husbandry
T1  - The effect of breeding region and year on milk traits of simmental bull dams
T1  - Uticaj odgajivačkog područja i godine na osobine mlečnosti bikovskih majki simentalske rase
VL  - 26
IS  - 5-6
SP  - 287
EP  - 295
DO  - 10.2298/BAH1006287P
ER  - 

@article{
author = "Pantelić, Vlada and Aleksić, S. and Stojić, P. and Đurđević, R. and Samolovac, Ljiljana and Janković, D. and Nikšić, Dragan",
year = "2010",
abstract = "Cows which represent top of the genetic value of the population in regard to their traits are chosen for bull dams. Selection is based on origin, production performance (quantity of milk, milk fat and protein content), milking/dairy traits, reproductive indicators, exterior and linear type scores. This study included 292 cows of Simmental breed selected for bull dams on the territory of Republic of Serbia during one year. Selection of cows for herd of bull dams was done after finalized first and subsequent lactation. In this study, the effect of region and year of calving on milk traits is presented. Applying the method of least squares average value of milk production was obtained - 5.754,49 kg, milk fat content - 3,98% and quantity of milk fat - 230,24 kg. Regions had statistically highly significant effect (P (lt) 0,01) on all investigated milk traits. Year of calving showed no statistically significant effect on milk yield, yield of milk fat and content of milk fat (P>0,05)., Za bikovske majke se odabiraju krave koje prema osobinama predstavljaju vrh genetske vrednosti populacije. Izbor se vrši na osnovu porekla, proizvodnih osobina (količina mleka, sadržaj mlečne masti i proteina), muznih osobina, reproduktivnih pokazatelja, eksterijera i linearnih ocena tipa. Ovim istraživanjem je obuhvaćeno 292 krave simentalske rase odabrane za bikovske majke na području Republike Srbije u toku godine. Odabiranje krava u zapat bikovskih majki izvršeno je posle završene prve, odnosno na osnovu sledećih laktacija. U radu je ispitan uticaj odgajivačkog područja i godine telenja na osobine mlečnosti. Koristeći metod najmanjih kvadrata dobijene su prosečne vrednosti proizvodnje mleka 5.754,49 kg, sadržaja mlečne masti 3,98% i količine mlečne masti 230,24 kg. Regioni su imali statistički visoko značajan uticaj (P (lt) 0,01) na sve ispitivane osobine mlečnosti. Na osobine prinosa mleka, mlečne masti i sadržaja mlečne masti, godina telenja nije ispoljila statistički značajan uticaj (P>0,05).",
publisher = "Institute for Animal Husbandry, Belgrade",
journal = "Biotechnology in Animal Husbandry",
title = "The effect of breeding region and year on milk traits of simmental bull dams, Uticaj odgajivačkog područja i godine na osobine mlečnosti bikovskih majki simentalske rase",
volume = "26",
number = "5-6",
pages = "287-295",
doi = "10.2298/BAH1006287P"
}

Pantelić, V., Aleksić, S., Stojić, P., Đurđević, R., Samolovac, L., Janković, D.,& Nikšić, D.. (2010). The effect of breeding region and year on milk traits of simmental bull dams. in Biotechnology in Animal Husbandry
Institute for Animal Husbandry, Belgrade., 26(5-6), 287-295.
https://doi.org/10.2298/BAH1006287P

Pantelić V, Aleksić S, Stojić P, Đurđević R, Samolovac L, Janković D, Nikšić D. The effect of breeding region and year on milk traits of simmental bull dams. in Biotechnology in Animal Husbandry. 2010;26(5-6):287-295.
doi:10.2298/BAH1006287P .

Pantelić, Vlada, Aleksić, S., Stojić, P., Đurđević, R., Samolovac, Ljiljana, Janković, D., Nikšić, Dragan, "The effect of breeding region and year on milk traits of simmental bull dams" in Biotechnology in Animal Husbandry, 26, no. 5-6 (2010):287-295,
https://doi.org/10.2298/BAH1006287P . .