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dc.contributor.authorKern, Elisandra Lurdespt_BR
dc.contributor.authorCobuci, Jaime Araújopt_BR
dc.contributor.authorCosta, Claudio Napolispt_BR
dc.contributor.authorPimentel, Concepta Margaret McManuspt_BR
dc.contributor.authorBraccini Neto, Josépt_BR
dc.date.accessioned2018-02-16T02:29:42Zpt_BR
dc.date.issued2015pt_BR
dc.identifier.issn0103-9016pt_BR
dc.identifier.urihttp://hdl.handle.net/10183/172583pt_BR
dc.description.abstractLongevity is a desirable trait in the dairy industry because of its relationship to profitability. The aim of this study was to estimate genetic parameters for longevity measurements related to productive life, or life in the herd, and linear type traits of Brazilian Holstein cows born between the years 1990 and 2008. The (co) variance components were estimated by the restricted maximum likelihood method. The heritability for measurements of longevity and linear type traits ranged from 0.05 to 0.07 and 0.08 to 0.39, respectively. The genetic correlations between measurements of longevity and linear type traits ranged from -0.39 to 0.31. Direct selection for longevity does not necessarily lead to long-lived cows, due to low heritability. Indirect genetic selection for udder depth, bone quality, udder height, rear teat placement and conformation traits showed the highest genetic correlations with measurements of time between birth and last milk record and time from first calving to last milk record.en
dc.format.mimetypeapplication/pdfpt_BR
dc.language.isoengpt_BR
dc.relation.ispartofScientia agricola. Piracicaba. Vol. 72, n. 3 (may/june 2015), p. 203-209pt_BR
dc.rightsOpen Accessen
dc.subjectProdução animalpt_BR
dc.subjectGenetic correlationen
dc.subjectMammary systemen
dc.subjectGenética animalpt_BR
dc.subjectGado holandespt_BR
dc.subjectProductive lifeen
dc.subjectRear teat placementen
dc.titleGenetic association between longevity and linear type traits of Holstein cowspt_BR
dc.typeArtigo de periódicopt_BR
dc.identifier.nrb000967121pt_BR
dc.type.originNacionalpt_BR


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