Fatores genéticos e de meio no intervalo de partos de caprinos leiteiros

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dc.contributor.authorGoncalves, H. C.
dc.contributor.authorSilva, NDE
dc.contributor.authorRamos, A. A.
dc.contributor.authorJose, C.
dc.contributor.authorEspeschit, B.
dc.contributor.authorWechsler, F. S.
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T15:22:54Z
dc.date.available2014-05-20T15:22:54Z
dc.date.issued1997-09-01
dc.description.abstractThe kidding intervals (IDP) of dairy goats raised in Southeastern Brazil were studied to quantify the influence of environmental factors and to estimate genetic parameters by means of least squares (MMQ) and restricted maximum likelihood (REML). The data analyzed were obtained from five farms and three breeds (Alpine, Saanen, and Toggenburg). The overall mean and standard error of IDP, as estimated by MMQ, were 339 +/- 12.70 days. The interaction of year x season of parturition influenced IDP. In two of the years studied, goats kidding at the end of the kidding season showed a shorter IDP when compared to those that were kidding after the end of the season. A quadratic trend of IDP over years was observed across the three kidding periods. For the three seasons. IDP increased from 1986 until mid-1989 and decreased thereafter. The heritability and repeatability of IDP, as estimated by MMQ and REML, were: 0.046 +/- 0.071 and 0.103 +/- 0.043, and 0.00026 and 0.08411, respectively. These estimates indicate that little genetic gain can be expected from selection for this trait.en
dc.description.affiliationUNESP, FMVZ, Botucatu, SP, Brazil
dc.description.affiliationUnespUNESP, FMVZ, Botucatu, SP, Brazil
dc.format.extent905-913
dc.identifierhttp://www.sbz.org.br/revista/artigos/129.pdf
dc.identifier.citationRevista da Sociedade Brasileira de Zootecnia-Journal of the Brazilian Society of Animal Science. Vicosa-mg: Revista Brasileira Zootecnia Brazilian Journal Animal Sci, v. 26, n. 5, p. 905-913, 1997.
dc.identifier.fileWOS000071040700009.pdf
dc.identifier.issn0100-4859
dc.identifier.urihttp://hdl.handle.net/11449/33803
dc.identifier.wosWOS:000071040700009
dc.language.isopor
dc.publisherRevista Brasileira Zootecnia Brazilian Journal Animal Sci
dc.relation.ispartofRevista da Sociedade Brasileira de Zootecnia-Journal of the Brazilian Society of Animal Science
dc.rights.accessRightsAcesso aberto
dc.sourceWeb of Science
dc.subjectgoatpt
dc.subjectheritabilitypt
dc.subjectkidding intervalpt
dc.subjectrepeatabilitypt
dc.titleFatores genéticos e de meio no intervalo de partos de caprinos leiteirospt
dc.title.alternativeEffects of genetic and environmental factors on the kidding interval of dairy goatsen
dc.typeArtigo
dcterms.licensehttp://www.scielo.br/revistas/rbz/iaboutj.htm#003
dcterms.rightsHolderRevista Brasileira Zootecnia Brazilian Journal Animal Sci

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