Genetic correlations between categorical morphological traits in Nelore cattle by applying Bayesian analysis under a threshold animal model

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dc.contributor.authorFaria, C. U.
dc.contributor.authorPires, B. C.
dc.contributor.authorVozzi, A. P.
dc.contributor.authorMagnabosco, C. U.
dc.contributor.authorKoury Filho, W.
dc.contributor.authorViu, M. A. O.
dc.contributor.authorOliveira, Henrique Nunes de [UNESP]
dc.contributor.authorLobo, R. B.
dc.contributor.institutionUniversidade Federal de Uberlândia (UFU)
dc.contributor.institutionUniversidade Federal de Goiás (UFG)
dc.contributor.institutionAssoc Nacl Criadores & Pesquisadores
dc.contributor.institutionEmpresa Brasileira de Pesquisa Agropecuária (EMBRAPA)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T15:32:54Z
dc.date.available2014-05-20T15:32:54Z
dc.date.issued2010-10-01
dc.description.abstractP>In this study, Bayesian analysis under a threshold animal model was used to estimate genetic correlations between morphological traits (body structure, finishing precocity and muscling) in Nelore cattle evaluated at weaning and yearling. Visual scores obtained from 7651 Nelore cattle at weaning and from 4155 animals at yearling, belonging to the Brazilian Nelore Program, were used. Genetic parameters for the morphological traits were estimated by two-trait Bayesian analysis under a threshold animal model. The genetic correlations between the morphological traits evaluated at two ages of the animal (weaning and yearling) were positive and high for body structure (0.91), finishing precocity (0.96) and muscling (0.94). These results indicate that the traits are mainly determined by the same set of genes of additive action and that direct selection at weaning will also result in genetic progress for the same traits at yearling. Thus, selection of the best genotypes during only one phase of life of the animal is suggested. However, genetic differences between morphological traits were better detected during the growth phase to yearling. Direct selection for body structure, finishing precocity and muscling at only one age, preferentially at yearling, is recommended as genetic differences between traits can be detected at this age.en
dc.description.affiliationUniversidade Federal de Uberlândia (UFU), Fac Med Vet, BR-38400902 Uberlandia, MG, Brazil
dc.description.affiliationUniversidade Federal de Goiás (UFG), Jatai, Go, Brazil
dc.description.affiliationAssoc Nacl Criadores & Pesquisadores, Ribeirao Preto, SP, Brazil
dc.description.affiliationEmpresa Brasileira de Pesquisa Agropecuária (EMBRAPA) Cerrados, Planaltina, DF, Brazil
dc.description.affiliationBrasilcomz Zootecnia Trop, Jaboticabal, SP, Brazil
dc.description.affiliationUniv Estadual Paulista, Jaboticabal, SP, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Jaboticabal, SP, Brazil
dc.description.sponsorshipFUNAPE (Fundação de Apoio a Pesquisa)
dc.format.extent377-384
dc.identifierhttp://dx.doi.org/10.1111/j.1439-0388.2010.00860.x
dc.identifier.citationJournal of Animal Breeding and Genetics. Malden: Wiley-blackwell, v. 127, n. 5, p. 377-384, 2010.
dc.identifier.doi10.1111/j.1439-0388.2010.00860.x
dc.identifier.issn0931-2668
dc.identifier.lattes5593441035110683
dc.identifier.urihttp://hdl.handle.net/11449/41686
dc.identifier.wosWOS:000281713200010
dc.language.isoeng
dc.publisherWiley-Blackwell
dc.relation.ispartofJournal of Animal Breeding and Genetics
dc.relation.ispartofjcr1.941
dc.relation.ispartofsjr0,804
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectBayesianen
dc.subjectBeef cattleen
dc.subjectVisual scoreen
dc.subjectThreshold modelen
dc.subjectGenetic parameteren
dc.titleGenetic correlations between categorical morphological traits in Nelore cattle by applying Bayesian analysis under a threshold animal modelen
dc.typeResumo
dcterms.licensehttp://olabout.wiley.com/WileyCDA/Section/id-406071.html
dcterms.rightsHolderWiley-blackwell
unesp.author.lattes5593441035110683
unesp.author.orcid0000-0002-3181-1223[7]
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Ciências Agrárias e Veterinárias, Jaboticabalpt

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