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dc.creatorPetrović, Milun D.
dc.creatorBogdanović, Vladan
dc.creatorPetrović, Milan M.
dc.creatorBogosavljević-Bošković, Snežana
dc.creatorĐoković, Radojica
dc.creatorĐedović, Radica
dc.creatorRakonjac, Simeon
dc.date.accessioned2018-12-14T15:07:46Z
dc.date.available2018-12-14T15:07:46Z
dc.date.issued2015
dc.identifier.issn2300-8733
dc.identifier.urihttp://r.istocar.bg.ac.rs/handle/123456789/452
dc.description.abstractThe 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.en
dc.publisherDe Gruyter Open Ltd, Warsaw
dc.relationinfo:eu-repo/grantAgreement/MESTD/Technological Development (TD or TR)/31086/RS//
dc.rightsopenAccess
dc.sourceAnnals of Animal Science
dc.subjectcoefficient of determinationen
dc.subjectmilk performanceen
dc.subjectSimmental breeden
dc.subjectsystematic effectsen
dc.titleEffect of non-genetic factors on standard lactation milk performance traits in simmental cowsen
dc.typearticle
dc.rights.licenseARR
dcterms.abstractБогосављевић-Бошковић, Снежана; Петровић, Милун Д.; Богдановић, Владан; Ракоњац, Симеон; Ђедовић, Радица; Ђоковић, Радојица; Петровић, Милан М.;
dc.citation.volume15
dc.citation.issue1
dc.citation.spage211
dc.citation.epage220
dc.citation.other15(1): 211-220
dc.citation.rankM23
dc.identifier.doi10.2478/aoas-2014-0073
dc.identifier.fulltexthttp://r.istocar.bg.ac.rs//bitstream/id/2193/450.pdf
dc.identifier.scopus2-s2.0-84925725726
dc.identifier.wos000350642100017
dc.type.versionpublishedVersion


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