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dc.contributor.authorda Cruz, Diego Augusto Campos
dc.contributor.authorSavegnago, Rodrigo Pelicioni [UNESP]
dc.contributor.authorSantana, Annaíza Braga Bignardi
dc.contributor.authorPeixoto, Maria Gabriela Campolina Diniz
dc.contributor.authorBruneli, Frank Angelo Tomita
dc.contributor.authorFaro, Lenira El
dc.date.accessioned2018-12-11T16:42:15Z
dc.date.available2018-12-11T16:42:15Z
dc.date.issued2016-07-01
dc.identifierhttp://dx.doi.org/10.1590/0103-8478cr20150418
dc.identifier.citationCiencia Rural, v. 46, n. 7, p. 1281-1288, 2016.
dc.identifier.issn1678-4596
dc.identifier.issn0103-8478
dc.identifier.urihttp://hdl.handle.net/11449/168626
dc.description.abstractThe aim of this study was to explore the pattern of genetic lactation curves of Guzerá cattle using cluster analysis. Test-day milk yields of 5,274 first-lactation Guzerá cows were recorded in a progeny test. A total of 34,193 monthly records were analyzed with a random regression animal model using Legendre polynomials to fit additive genetic and permanent environmental random effects and mean trends. Hierarchical and non-hierarchical cluster analyses were performed based on the EBVs for monthly test-day milk yield, peak yield, lactation persistency, and partial cumulative and 305-day yields. The heritability estimates for test- day milk yields ranged from 0.24 to 0.52. Cluster analysis identified animals in the population that belong to different groups according to milk production level and lactation persistency.en
dc.format.extent1281-1288
dc.language.isoeng
dc.relation.ispartofCiencia Rural
dc.sourceScopus
dc.subjectBreeding values
dc.subjectLactation curve
dc.subjectRandom regression
dc.titleAnálises de agrupamento dos valores genéticos para produção de leite e persistência da lactação em bovinos da raça Guzerápt
dc.title.alternativeCluster analysis of breeding values for milk yield and lactation persistency in guzerá cattleen
dc.typeArtigo
dc.contributor.institutionInstituto de Zotecnia/SAA
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.contributor.institutionUniversidade Federal de Mato Grosso (UFMT)
dc.contributor.institutionEmpresa Brasileira de Pesquisa Agropecuária (EMBRAPA)
dc.contributor.institutionInstituto de Zootecnia/SAA
dc.description.affiliationPrograma de Pós-graduação em Produção Animal Sustentável Instituto de Zotecnia/SAA
dc.description.affiliationFaculdade de Ciências Agrárias e Veterinárias (FCAV) Universidade Estadual Paulista “Júlio de Mesquita Filho” (UNESP)
dc.description.affiliationUniversidade Federal de Mato Grosso (UFMT)
dc.description.affiliationEmbrapa Gado de Leite
dc.description.affiliationInstituto de Zootecnia/SAA, Rodovia Carlos Tonani, Km 94, 14174-000
dc.description.affiliationUnespFaculdade de Ciências Agrárias e Veterinárias (FCAV) Universidade Estadual Paulista “Júlio de Mesquita Filho” (UNESP)
dc.identifier.doi10.1590/0103-8478cr20150418
dc.identifier.scieloS0103-84782016000701281
dc.rights.accessRightsAcesso aberto
dc.identifier.scopus2-s2.0-84965095993
dc.identifier.fileS0103-84782016000701281.pdf
dc.relation.ispartofsjr0,337
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