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https://doi.org/10.15567/mljekarstvo.2020.0203

Phenotypic and genetic parameters of milk yield traits in first-calf heifers of Holstein-Friesian breed

Mladen Popovac   ORCID icon orcid.org/0000-0002-4983-8408 ; University of Belgrade, Faculty of Agriculture, Nemanjina 6, 11080 Zemun, Serbia
Aleksandar Miletić ; Intitute PKB Agroeconomik, Industrijsko naselje bb, 11000 Belgrade, Serbia
Nikola Raguž ; Josip Juraj Strossmayer University of Osijek, Faculty of Agriculture, Kralja Petra Svačića 1d, 31000 Osijek, Croatia
Radmila Beskorovajni ; Institute for Science Application in Agriculture, Bulevar despota Stefana 68b, 11000 Belgrade, Serbia
Dragan Stanojević ; University of Belgrade, Faculty of Agriculture, Nemanjina 6, 11080 Zemun, Serbia
Mihailo Radivojević ; Intitute PKB Agroeconomik, Industrijsko naselje bb, 11000 Belgrade, Serbia
Nenad Mićić ; Institute for Animal Husbandry Belgrade, Autoput 16, 11000 Belgrade, Serbia
Nenad Đurić ; John Naisbitt University, Faculty for Biopharming, Maršala Tita 39, 21400 Bačka Palanka, Serbia

Puni tekst: engleski, pdf (258 KB) str. 93-102 preuzimanja: 209* citiraj
APA 6th Edition
Popovac, M., Miletić, A., Raguž, N., Beskorovajni, R., Stanojević, D., Radivojević, M., ... Đurić, N. (2020). Phenotypic and genetic parameters of milk yield traits in first-calf heifers of Holstein-Friesian breed . Mljekarstvo, 70 (2), 93-102. https://doi.org/10.15567/mljekarstvo.2020.0203
MLA 8th Edition
Popovac, Mladen, et al. "Phenotypic and genetic parameters of milk yield traits in first-calf heifers of Holstein-Friesian breed ." Mljekarstvo, vol. 70, br. 2, 2020, str. 93-102. https://doi.org/10.15567/mljekarstvo.2020.0203. Citirano 18.05.2021.
Chicago 17th Edition
Popovac, Mladen, Aleksandar Miletić, Nikola Raguž, Radmila Beskorovajni, Dragan Stanojević, Mihailo Radivojević, Nenad Mićić i Nenad Đurić. "Phenotypic and genetic parameters of milk yield traits in first-calf heifers of Holstein-Friesian breed ." Mljekarstvo 70, br. 2 (2020): 93-102. https://doi.org/10.15567/mljekarstvo.2020.0203
Harvard
Popovac, M., et al. (2020). 'Phenotypic and genetic parameters of milk yield traits in first-calf heifers of Holstein-Friesian breed ', Mljekarstvo, 70(2), str. 93-102. https://doi.org/10.15567/mljekarstvo.2020.0203
Vancouver
Popovac M, Miletić A, Raguž N, Beskorovajni R, Stanojević D, Radivojević M i sur. Phenotypic and genetic parameters of milk yield traits in first-calf heifers of Holstein-Friesian breed . Mljekarstvo [Internet]. 2020 [pristupljeno 18.05.2021.];70(2):93-102. https://doi.org/10.15567/mljekarstvo.2020.0203
IEEE
M. Popovac, et al., "Phenotypic and genetic parameters of milk yield traits in first-calf heifers of Holstein-Friesian breed ", Mljekarstvo, vol.70, br. 2, str. 93-102, 2020. [Online]. https://doi.org/10.15567/mljekarstvo.2020.0203
Puni tekst: hrvatski, pdf (258 KB) str. 93-102 preuzimanja: 148* citiraj
APA 6th Edition
Popovac, M., Miletić, A., Raguž, N., Beskorovajni, R., Stanojević, D., Radivojević, M., ... Đurić, N. (2020). Fenotipski i genetski parametri osobina mliječnosti prvotelki holštajn-frizijske pasmine. Mljekarstvo, 70 (2), 93-102. https://doi.org/10.15567/mljekarstvo.2020.0203
MLA 8th Edition
Popovac, Mladen, et al. "Fenotipski i genetski parametri osobina mliječnosti prvotelki holštajn-frizijske pasmine." Mljekarstvo, vol. 70, br. 2, 2020, str. 93-102. https://doi.org/10.15567/mljekarstvo.2020.0203. Citirano 18.05.2021.
Chicago 17th Edition
Popovac, Mladen, Aleksandar Miletić, Nikola Raguž, Radmila Beskorovajni, Dragan Stanojević, Mihailo Radivojević, Nenad Mićić i Nenad Đurić. "Fenotipski i genetski parametri osobina mliječnosti prvotelki holštajn-frizijske pasmine." Mljekarstvo 70, br. 2 (2020): 93-102. https://doi.org/10.15567/mljekarstvo.2020.0203
Harvard
Popovac, M., et al. (2020). 'Fenotipski i genetski parametri osobina mliječnosti prvotelki holštajn-frizijske pasmine', Mljekarstvo, 70(2), str. 93-102. https://doi.org/10.15567/mljekarstvo.2020.0203
Vancouver
Popovac M, Miletić A, Raguž N, Beskorovajni R, Stanojević D, Radivojević M i sur. Fenotipski i genetski parametri osobina mliječnosti prvotelki holštajn-frizijske pasmine. Mljekarstvo [Internet]. 2020 [pristupljeno 18.05.2021.];70(2):93-102. https://doi.org/10.15567/mljekarstvo.2020.0203
IEEE
M. Popovac, et al., "Fenotipski i genetski parametri osobina mliječnosti prvotelki holštajn-frizijske pasmine", Mljekarstvo, vol.70, br. 2, str. 93-102, 2020. [Online]. https://doi.org/10.15567/mljekarstvo.2020.0203

Sažetak
The objective of this paper was to study variability, heritability and correlation of the three production traits in 1409 first-calf heifers of Holstein-Friesian breed; including the determination of the quantity of milk during lactation (ML), the quantity of milk fat during lactation (MM) and the quantity of protein during lactation (PR). According to the obtained results it could be concluded that there were statistically significant differences (P<0.01, P<0.05, P<0.001) between ML, MM and PR regarding the effect of season of the first calving and the length of the first lactation. In addition, there were also significant differences (P<0.01, P<0.001) between ML and PR with respect to the effect of farm on which animals were raised, while on MM variability the year and age at first calving had a significant effect (P<0.05). A share of Holstein genes and the ration which animals were fed had no effect (P>0.05) on variability of any of the examined traits, while the farm on which animals were raised had no effect (P>0.05) on MM, and year and age at first calving did not demonstrate (P>0.05) statistically significant effect on ML and PR. By applying the animal model, based on the use of kinship matrix which involved 3867 animals, by help of REML methodology following heritability coefficients were evaluated: ML h2= 0.25; MM h2= 0.40; PR h2= 0.37. Coefficients determined for genetic and phenotypic correlations indicated existence of complete and positive correlations between these traits the interval of values being from rg = 0.96 between ML and MM to rg = 1.00 between ML and PR.

Ključne riječi
Holstein-Friesian first-calf heifers; cow milk yield traits; animal model; heritability; genetic correlations

Hrčak ID: 235970

URI
https://hrcak.srce.hr/235970

[hrvatski]

Posjeta: 617 *