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 . .

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 . .

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 . .