To test the variability of fertility traits of Holstein-Friesian bulls monitored in progeny test, reproduction data of 342 cows, daughters of 15 bulls were used. Cows have been in production in seven farms of Agricultural Corporation "Belgrade" in the period from 2004 to 2012. The study included the following fertility traits: the average calving age, service period and calving interval. To analyze the influence of genetic and non-genetic sources of variability a mixed model with random effect of bull - sire, the fixed effects of farm, year, season and order of calving was used. The sire is present in variability of all the observed fertility traits (p <0.01), whereas the fixed factors manifested their influence at different levels of statistical significance. The heritability of fertility traits was low: the average calving age – 0.224, service period – 0.087, calving interval – 0.085. Repeatability of mentioned traits was 0.258, 0.111, 0.102, respectively.
Proceedings of the 4th International Congress "New Perspectives and Challenges of Sustainable Livestock Production", Belgrade, Serbia, October 7-9, 2015, 2015, 520-529
TY - CONF
AU - Lazarević, Marina
AU - Nikšić, Dragan
AU - Ostojić Andrić, Dušica
AU - Pantelić, Vlada
AU - Maksimović, Nevena
AU - Stanišić, Nikola
AU - Stanojević, Dragan
AU - Mićić, Nenad
PY - 2015
UR - http://r.istocar.bg.ac.rs/handle/123456789/694
AB - To test the variability of fertility traits of Holstein-Friesian bulls monitored in progeny test, reproduction data of 342 cows, daughters of 15 bulls were used. Cows have been in production in seven farms of Agricultural Corporation "Belgrade" in the period from 2004 to 2012. The study included the following fertility traits: the average calving age, service period and calving interval. To analyze the influence of genetic and non-genetic sources of variability a mixed model with random effect of bull - sire, the fixed effects of farm, year, season and order of calving was used. The sire is present in variability of all the observed fertility traits (p <0.01), whereas the fixed factors manifested their influence at different levels of statistical significance. The heritability of fertility traits was low: the average calving age – 0.224, service period – 0.087, calving interval – 0.085. Repeatability of mentioned traits was 0.258, 0.111, 0.102, respectively.
PB - Institute for Animal Husbandry, Belgrade-Zemun
C3 - Proceedings of the 4th International Congress "New Perspectives and Challenges of Sustainable Livestock Production", Belgrade, Serbia, October 7-9, 2015
T1 - HERITABILITY AND REPEATABILITY OF FERTILITY TRAITS OF HOLSTEIN-FRIESIAN BULLS MONITORED IN PROGENY TESTING
SP - 520
EP - 529
UR - https://hdl.handle.net/21.15107/rcub_ristocar_694
ER -
@conference{
author = "Lazarević, Marina and Nikšić, Dragan and Ostojić Andrić, Dušica and Pantelić, Vlada and Maksimović, Nevena and Stanišić, Nikola and Stanojević, Dragan and Mićić, Nenad",
year = "2015",
abstract = "To test the variability of fertility traits of Holstein-Friesian bulls monitored in progeny test, reproduction data of 342 cows, daughters of 15 bulls were used. Cows have been in production in seven farms of Agricultural Corporation "Belgrade" in the period from 2004 to 2012. The study included the following fertility traits: the average calving age, service period and calving interval. To analyze the influence of genetic and non-genetic sources of variability a mixed model with random effect of bull - sire, the fixed effects of farm, year, season and order of calving was used. The sire is present in variability of all the observed fertility traits (p <0.01), whereas the fixed factors manifested their influence at different levels of statistical significance. The heritability of fertility traits was low: the average calving age – 0.224, service period – 0.087, calving interval – 0.085. Repeatability of mentioned traits was 0.258, 0.111, 0.102, respectively.",
publisher = "Institute for Animal Husbandry, Belgrade-Zemun",
journal = "Proceedings of the 4th International Congress "New Perspectives and Challenges of Sustainable Livestock Production", Belgrade, Serbia, October 7-9, 2015",
title = "HERITABILITY AND REPEATABILITY OF FERTILITY TRAITS OF HOLSTEIN-FRIESIAN BULLS MONITORED IN PROGENY TESTING",
pages = "520-529",
url = "https://hdl.handle.net/21.15107/rcub_ristocar_694"
}
Lazarević, M., Nikšić, D., Ostojić Andrić, D., Pantelić, V., Maksimović, N., Stanišić, N., Stanojević, D.,& Mićić, N.. (2015). HERITABILITY AND REPEATABILITY OF FERTILITY TRAITS OF HOLSTEIN-FRIESIAN BULLS MONITORED IN PROGENY TESTING. in Proceedings of the 4th International Congress "New Perspectives and Challenges of Sustainable Livestock Production", Belgrade, Serbia, October 7-9, 2015
Institute for Animal Husbandry, Belgrade-Zemun., 520-529.
https://hdl.handle.net/21.15107/rcub_ristocar_694
Lazarević M, Nikšić D, Ostojić Andrić D, Pantelić V, Maksimović N, Stanišić N, Stanojević D, Mićić N. HERITABILITY AND REPEATABILITY OF FERTILITY TRAITS OF HOLSTEIN-FRIESIAN BULLS MONITORED IN PROGENY TESTING. in Proceedings of the 4th International Congress "New Perspectives and Challenges of Sustainable Livestock Production", Belgrade, Serbia, October 7-9, 2015. 2015;:520-529.
https://hdl.handle.net/21.15107/rcub_ristocar_694 .
Lazarević, Marina, Nikšić, Dragan, Ostojić Andrić, Dušica, Pantelić, Vlada, Maksimović, Nevena, Stanišić, Nikola, Stanojević, Dragan, Mićić, Nenad, "HERITABILITY AND REPEATABILITY OF FERTILITY TRAITS OF HOLSTEIN-FRIESIAN BULLS MONITORED IN PROGENY TESTING" in Proceedings of the 4th International Congress "New Perspectives and Challenges of Sustainable Livestock Production", Belgrade, Serbia, October 7-9, 2015 (2015):520-529,
https://hdl.handle.net/21.15107/rcub_ristocar_694 .
