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dc.contributor.authorda Silva, A. M.
dc.contributor.authorde Alencar, M. M.
dc.contributor.authorde Freitas, A. R.
dc.contributor.authorBarbosa, R. T.
dc.contributor.authorBarbosa, P. F.
dc.contributor.authorOliveira, MCD
dc.contributor.authorCorrea, L. D.
dc.contributor.authorde Novaes, A. P.
dc.contributor.authorTullio, R. R.
dc.date.accessioned2014-05-20T15:25:35Z
dc.date.available2014-05-20T15:25:35Z
dc.date.issued2000-11-01
dc.identifierhttp://www.sbz.org.br/revista/artigos/2643.pdf
dc.identifier.citationRevista Brasileira de Zootecnia-Brazilian Journal of Animal Science. Vicosa-mg: Revista Brasileira Zootecnia Brazilian Journal Animal Sci, v. 29, n. 6, p. 2223-2230, 2000.
dc.identifier.issn1516-3598
dc.identifier.urihttp://hdl.handle.net/11449/35961
dc.description.abstractThe objective of this study was to estimate heritabilities of and genetic correlations among male body weight (BW12) and scrotal circumference (SC12) at 12 months of age, and female body weights at first (BWFC) and second (BWSC) calvings, age at first (AFC) and second (ASC) calvings, adult weight (AW), and mature weight (A) and maturation rate (k) obtained by the use of the Von Bertalanffy model. The restricted maximum likelihood method with an animal model that included the fixed effects of contemporary group and the random effects of animals, was used to estimate the variance and covariance components. The heritability estimates were equal to: 0.37 (BW12),0.30 (SC12),0.38 (A), 0.35 (k), 0.12 (AFC), 0.33 (BWFC), 0.04 (ASC), 0.39 (BWSC), and 0.38 (AW). The genetic correlations among BW12 and the female traits were: 0.19 (parameter A), 0.62 (parameter k), -0.58 (AFC), 0.69 (BWFC), -0.56 (ASC), 0.61 (BWSC), and 0.60 (AW). The genetic correlations among SC12 and the female traits were: -0.24 (A), 0.27 (k), -0.47 (AFC), 0.09 (BWFC), -0.67 (ASC), 0.07 (BWSC), and -0.17 (AW). These results indicate that male body weight and scrotal circumference and female weights (BWFC, BWSC and AW) and growth curve parameters A and k have enough additive genetic variation to respond to mass selection. Selection to increase male body weight at 12 months of age should result on favorable correlated changes in AFC, ASC and parameter k of females, but with increases in female body weights (BWFC, BWSC and AW). Selection to increase SC12 should result on desirable correlated responses in AFC, ASC and k, without any considerable change in female adult body weights.en
dc.format.extent2223-2230
dc.language.isopor
dc.publisherRevista Brasileira Zootecnia Brazilian Journal Animal Sci
dc.relation.ispartofRevista Brasileira de Zootecnia = Brazilian Journal of Animal Science
dc.sourceWeb of Science
dc.subjectbeef cattlept
dc.subjectreproductive traitspt
dc.subjectfemalept
dc.subjectmalept
dc.subjectadult body weightpt
dc.subjectselectionpt
dc.titleHerdabilidades e Correlações Genéticas para Peso e Perímetro Escrotal de Machos e Características Reprodutivas e de Crescimento de Fêmeas, na Raça Canchimpt
dc.title.alternativeHeritabilities and genetic correlations for male body weight and scrotal circumference and female reproductive and growth traits, in Canchim cattleen
dc.typeArtigo
dcterms.licensehttp://www.scielo.br/revistas/rbz/iaboutj.htm#003
dcterms.rightsHolderRevista Brasileira Zootecnia Brazilian Journal Animal Sci
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionEmpresa Brasileira de Pesquisa Agropecuária (EMBRAPA)
dc.description.affiliationUNESP, Jaboticabal, SP, Brazil
dc.description.affiliationEmbrapa Pecuaria Sudeste, BR-13560970 Sao Carlos, SP, Brazil
dc.description.affiliationUnespUNESP, Jaboticabal, SP, Brazil
dc.identifier.wosWOS:000176458900010
dc.rights.accessRightsAcesso aberto
dc.identifier.fileWOS000176458900010.pdf
unesp.author.orcid0000-0002-1058-2089[9]
unesp.author.orcid0000-0002-7038-4607[6]
dc.relation.ispartofsjr0,337
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