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dc.contributor.authorCampos, Rafael Viegaspt_BR
dc.contributor.authorCobuci, Jaime Araújopt_BR
dc.contributor.authorCosta, Claudio Napolispt_BR
dc.contributor.authorBraccini Neto, Josépt_BR
dc.date.accessioned2014-07-23T02:05:46Zpt_BR
dc.date.issued2012pt_BR
dc.identifier.issn1516-3598pt_BR
dc.identifier.urihttp://hdl.handle.net/10183/98417pt_BR
dc.description.abstractData from 26,558 Holstein cows in 802 herds were used to estimate genetic, residual and phenotypic parameters for 22 type traits. The model included the fixed effects of herd-year, period of classification, classifier, stage of lactation and age of cows at calving (covariate) and random genetic and residual effects. Heritability for type traits ranged from 0.10 to 0.39. The genetic variability in these traits suggested the possibility for moderate genetic gains through selection. The phenotypic correlations were moderated, mainly in the section conformation. Genetic correlations between type traits ranged from -0.44 to 0.85. High genetic correlations indicated that breeding programs could be successful without including all type traits. The selection for the final score at the expense of other traits must be performed with restraint, because in the long term, this may promote undesirable changes in some type traits.en
dc.format.mimetypeapplication/pdfpt_BR
dc.language.isoengpt_BR
dc.relation.ispartofRevista brasileira de zootecnia= Brazilian journal of animal science [recurso eletrônico]. Viçosa, MG. Vol. 41, n. 10 (out. 2012), p. 2150-2161pt_BR
dc.rightsOpen Accessen
dc.subjectGado leiteiropt_BR
dc.subject(Co)variance componentsen
dc.subjectDairy cattleen
dc.subjectGenética animalpt_BR
dc.subjectGenetic correlationsen
dc.subjectGado holandespt_BR
dc.subjectHeritabilityen
dc.subjectMelhoramento genetico animalpt_BR
dc.subjectREMLF90en
dc.subjectSelectionen
dc.titleGenetic parameters for type traits in Holstein cows in Brazilpt_BR
dc.typeArtigo de periódicopt_BR
dc.identifier.nrb000874198pt_BR
dc.type.originNacionalpt_BR


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