Use este identificador para citar ou linkar para este item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/951704
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dc.contributor.authorTORAL, F. L. B.pt_BR
dc.contributor.authorTORRES JUNIOR, R. A. de A.pt_BR
dc.contributor.authorLOPES, P. S.pt_BR
dc.contributor.authorCARDOSO, F. F.pt_BR
dc.contributor.authorSILVA, L. O. C. dapt_BR
dc.date.accessioned2013-02-28T11:11:11Zpt_BR
dc.date.available2013-02-28T11:11:11Zpt_BR
dc.date.created2013-02-28pt_BR
dc.date.issued2012pt_BR
dc.identifier.citationRevista Brasileira de Zootecnia, Viçosa, MG, v. 41, n. 5, p. 1163-1172, 2012.pt_BR
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/951704pt_BR
dc.descriptionThe objective of the present study was to analyze models with genetic and/or residual heteroskedasticity for genetic evaluation of the weaning weight of Charolais-Zebu crossbred calves. Weaning weight data from 56,965 crossbred calves were analyzed using animal models with different combinations of genetic and residual heteroskedasticity and/or homoskedasticity. The inference on a posteriori distributions of genetic parameters were by the Monte Carlo method via Markov chains. The model with genetic and residual heteroskedasticity was the best fit on the data. Groups of animals with different genetic compositions, expressed as percentages of Charolais-Zebu breed alleles and individual and maternal heterozygosis, had different genetic variances. These genetic variances could be modeled by linear functions of the Charolais and Zebu genetic variances and the variance attributed to segregation. The breed compositions, the individual and maternal heterozygosis, the sex and age of dam at calving were significant sources of residual heteroskedasticity. The a posteriori means for heritabilities and sire and dam classifications were altered due to genetic and residual heteroskedasticity.pt_BR
dc.language.isoengeng
dc.rightsopenAccesseng
dc.titleHeteroskedasticity for weaning weight of Charolais-Zebu crossbred calves.pt_BR
dc.typeArtigo de periódicopt_BR
dc.date.updated2013-02-28T11:11:11Zpt_BR
dc.subject.thesagroGado de Cortept_BR
riaa.ainfo.id951704pt_BR
riaa.ainfo.lastupdate2013-02-28pt_BR
dc.contributor.institutionFábio Luiz Buranelo Toral, UFMG; ROBERTO AUGUSTO DE A TORRES JUNIOR, CNPGC; Paulo Sávio Lopes, UFV; FERNANDO FLORES CARDOSO, CPPSUL; LUIZ OTAVIO CAMPOS DA SILVA, CNPGC.pt_BR
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