Effect of non-genetic factors on standard lactation milk performance traits in simmental cows
2015
Autori
Petrović, Milun D.Bogdanović, Vladan
Petrović, Milan M.
Bogosavljević-Bošković, Snežana
Đoković, Radojica
Đedović, Radica
Rakonjac, Simeon
Članak u časopisu (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
The effect of systematic and continuous environmental factors on milk performance traits over standard lactations in 2805 Simmental cows was evaluated using the general linear model. The systematic factors included the effect of farm or breeding area, calving season, year of birth, season of birth, lactation group and their interactions. The continuous factor analysed was the effect of age at first conception. The effect of farm, lactation group and calving season on standard lactation milk performance was found to be highly significant (P (lt) 0.01), excepting the effect of calving season on milk fat percent in standard lactations which showed statistical significance (P (lt) 0.05). The interactions between year and season of birth, farm and calving season, and farm and lactation group had a highly significant effect (P (lt) 0.01) on all performance traits studied. Age at first conception, as a continuous factor, had a highly significant effect (P (lt) 0.01) on milk yield and milk fat... percent, and a non-significant effect on milk fat yield. The model used to correct the performance traits over standard lactations for the effect of systematic factors was highly significant (P (lt) 0.01). The variance of the model accounted for 20.06 and 37.31% of the total variance of milk fat yield and milk fat percent, respectively. The resulting coefficients of determination (R-2) ranged from 0.20 for milk fat yield to 0.37 for milk fat percent.
Ključne reči:
coefficient of determination / milk performance / Simmental breed / systematic effectsIzvor:
Annals of Animal Science, 2015, 15, 1, 211-220Izdavač:
- De Gruyter Open Ltd, Warsaw
Finansiranje / projekti:
DOI: 10.2478/aoas-2014-0073
ISSN: 2300-8733
WoS: 000350642100017
Scopus: 2-s2.0-84925725726
Institucija/grupa
RIStocarTY - JOUR AU - Petrović, Milun D. AU - Bogdanović, Vladan AU - Petrović, Milan M. AU - Bogosavljević-Bošković, Snežana AU - Đoković, Radojica AU - Đedović, Radica AU - Rakonjac, Simeon PY - 2015 UR - http://r.istocar.bg.ac.rs/handle/123456789/452 AB - The effect of systematic and continuous environmental factors on milk performance traits over standard lactations in 2805 Simmental cows was evaluated using the general linear model. The systematic factors included the effect of farm or breeding area, calving season, year of birth, season of birth, lactation group and their interactions. The continuous factor analysed was the effect of age at first conception. The effect of farm, lactation group and calving season on standard lactation milk performance was found to be highly significant (P (lt) 0.01), excepting the effect of calving season on milk fat percent in standard lactations which showed statistical significance (P (lt) 0.05). The interactions between year and season of birth, farm and calving season, and farm and lactation group had a highly significant effect (P (lt) 0.01) on all performance traits studied. Age at first conception, as a continuous factor, had a highly significant effect (P (lt) 0.01) on milk yield and milk fat percent, and a non-significant effect on milk fat yield. The model used to correct the performance traits over standard lactations for the effect of systematic factors was highly significant (P (lt) 0.01). The variance of the model accounted for 20.06 and 37.31% of the total variance of milk fat yield and milk fat percent, respectively. The resulting coefficients of determination (R-2) ranged from 0.20 for milk fat yield to 0.37 for milk fat percent. PB - De Gruyter Open Ltd, Warsaw T2 - Annals of Animal Science T1 - Effect of non-genetic factors on standard lactation milk performance traits in simmental cows VL - 15 IS - 1 SP - 211 EP - 220 DO - 10.2478/aoas-2014-0073 ER -
@article{ author = "Petrović, Milun D. and Bogdanović, Vladan and Petrović, Milan M. and Bogosavljević-Bošković, Snežana and Đoković, Radojica and Đedović, Radica and Rakonjac, Simeon", year = "2015", abstract = "The effect of systematic and continuous environmental factors on milk performance traits over standard lactations in 2805 Simmental cows was evaluated using the general linear model. The systematic factors included the effect of farm or breeding area, calving season, year of birth, season of birth, lactation group and their interactions. The continuous factor analysed was the effect of age at first conception. The effect of farm, lactation group and calving season on standard lactation milk performance was found to be highly significant (P (lt) 0.01), excepting the effect of calving season on milk fat percent in standard lactations which showed statistical significance (P (lt) 0.05). The interactions between year and season of birth, farm and calving season, and farm and lactation group had a highly significant effect (P (lt) 0.01) on all performance traits studied. Age at first conception, as a continuous factor, had a highly significant effect (P (lt) 0.01) on milk yield and milk fat percent, and a non-significant effect on milk fat yield. The model used to correct the performance traits over standard lactations for the effect of systematic factors was highly significant (P (lt) 0.01). The variance of the model accounted for 20.06 and 37.31% of the total variance of milk fat yield and milk fat percent, respectively. The resulting coefficients of determination (R-2) ranged from 0.20 for milk fat yield to 0.37 for milk fat percent.", publisher = "De Gruyter Open Ltd, Warsaw", journal = "Annals of Animal Science", title = "Effect of non-genetic factors on standard lactation milk performance traits in simmental cows", volume = "15", number = "1", pages = "211-220", doi = "10.2478/aoas-2014-0073" }
Petrović, M. D., Bogdanović, V., Petrović, M. M., Bogosavljević-Bošković, S., Đoković, R., Đedović, R.,& Rakonjac, S.. (2015). Effect of non-genetic factors on standard lactation milk performance traits in simmental cows. in Annals of Animal Science De Gruyter Open Ltd, Warsaw., 15(1), 211-220. https://doi.org/10.2478/aoas-2014-0073
Petrović MD, Bogdanović V, Petrović MM, Bogosavljević-Bošković S, Đoković R, Đedović R, Rakonjac S. Effect of non-genetic factors on standard lactation milk performance traits in simmental cows. in Annals of Animal Science. 2015;15(1):211-220. doi:10.2478/aoas-2014-0073 .
Petrović, Milun D., Bogdanović, Vladan, Petrović, Milan M., Bogosavljević-Bošković, Snežana, Đoković, Radojica, Đedović, Radica, Rakonjac, Simeon, "Effect of non-genetic factors on standard lactation milk performance traits in simmental cows" in Annals of Animal Science, 15, no. 1 (2015):211-220, https://doi.org/10.2478/aoas-2014-0073 . .