Estimativas de parâmetros genéticos e proposição de critérios de seleção para pesos na raça Canchim

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dc.contributor.authorMascioli, Arthur Dos Santos [UNESP]
dc.contributor.authorDe Alencar, Maurício Mello
dc.contributor.authorBarbosa, Pedro Franklin
dc.contributor.authorDe Novaes, Antônio Pereira
dc.contributor.authorOliveira, Marcia Cristina de Sena
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionEmpresa Brasileira de Pesquisa Agropecuária (EMBRAPA)
dc.date.accessioned2014-05-27T11:18:09Z
dc.date.available2014-05-27T11:18:09Z
dc.date.issued1996-12-01
dc.description.abstractThe objectives of this study were to obtain heritability and genetic, phenotypic and environmental correlation estimates for birth (B), weaning (WW), yearling (YW) and 18 - (EW) and 24 - month (TW) weights, and to propose selection criteria for body weight in Canchim cattle. The data were analyzed by the least-squares method with models that included the fixed effects of herd, year and month of birth, sex of calf and age of cow at calving, and the random effects of sire within herd. The heritability estimates obtained were equal to 0.36 0.06 (BW), 0.47 0.06 (WW), 0.53 0.07 (YW), 0.54 0.08 (EW) and 0.27 0.06 (TW). The genetic correlations were equal to 0.51 (BW and WW), 0.36 (BW and YW), 0.14 (BW and EW), 0.00 (BW and TW), 0.92 (WW and YW), 0.77 (WW and EW), 0.75 (WW and TW), 0.94 (YW and EW), 0.86 (YW and TW) and 0.85 (EW and TW). The phenotypic correlations ranged from 0.19 to 0.72, and the environmental correlations from 0.11 to 0.61. The results showed that, in general, mass selection for weight will result in genetic progress, selection for weight at any age will result in correlated changes at other ages, and EW and TW are good selection criteria for increasing weight in the Canchim breed.en
dc.description.affiliationUNESP, Jaboticabal
dc.description.affiliationEMBRAPA CPPSE, São Carlos, SP
dc.description.affiliationUnespUNESP, Jaboticabal
dc.format.extent72-82
dc.identifierhttp://www.revista.sbz.org.br/artigo/index.php?artigo=206
dc.identifier.citationRevista Brasileira de Zootecnia, v. 25, n. 1, p. 72-82, 1996.
dc.identifier.file2-s2.0-3142622756.pdf
dc.identifier.issn0100-4859
dc.identifier.scopus2-s2.0-3142622756
dc.identifier.urihttp://hdl.handle.net/11449/64948
dc.language.isopor
dc.relation.ispartofRevista Brasileira de Zootecnia
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectBeef cattle
dc.subjectGenetic correlations
dc.subjectHeritability
dc.subjectSelection
dc.titleEstimativas de parâmetros genéticos e proposição de critérios de seleção para pesos na raça Canchimpt
dc.title.alternativeGenetic parameters and selection criteria for body weight in Canchim cattleen
dc.typeArtigo
dcterms.licensehttp://www.scielo.br/revistas/rbz/paboutj.htm#003

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