Use este identificador para citar ou linkar para este item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/215425
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dc.contributor.authorFARIA, C. U. de
dc.contributor.authorMAGNABOSCO, C. de U.
dc.contributor.authorLOS REYES, A. de
dc.contributor.authorLÔBO, R. B.
dc.contributor.authorBEZERRA, L. A. F.
dc.contributor.authorSAINZ, R. D.
dc.date.accessioned2026-03-10T12:53:13Z-
dc.date.available2026-03-10T12:53:13Z-
dc.date.created2007-07-18
dc.date.issued2007
dc.identifier.citationGenetics and Molecular Biology, Ribeirão Preto, v. 30, n. 2, p. 343-348, 2007.
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/215425-
dc.descriptionWe used Gibbs sampling in single and two-trait animal models to estimate genetic parameters for some reproductive and related traits of Nellore cattle ( Bos indicus). Female traits were age at first calving (AFC), cumulative productivity (CP) and adult weight (AW). For males, scrotal circumferences at 365 and 450 days of age were analyzed. Gibbs sampling using the 'Multiple Trait using Gibbs Sampling under Animal Model' (MTGSAM) program of Van Tassel and Van Vleck was used to estimate the (co)variance components of the traits and conduct genetic analyses. Heritabilities were AFC = 0.26, AW = 0.36 and CP = 0.25 under the single-trait animal model. The mean, mode and median estimates for genetic parameters obtained from the marginal posterior distributions were similar for all traits except AW, which presented lower values for the mode than the mean and median. However, the marginal posterior distributions for the traits studied presented a tendency toward normality. Favorable, but low, negative genetic correlations were found between male scrotal circumference and female age at first calving. The reproductive traits showed medium-magnitude heritabilities, which indicates that these traits should respond to selection and therefore should be included in genetic improvement programs.
dc.language.isoeng
dc.rightsopenAccess
dc.titleBayesian inference on field data for genetic parameters for some reproductive and related traits of Nellore cattle ( Bos indicus).
dc.typeArtigo de periódico
dc.subject.thesagroGado de Corte
dc.subject.thesagroMelhoramento Genético Animal
dc.subject.thesagroReprodução
dc.subject.thesagroGado Nelore
dc.subject.nalthesaurusBayesian theory
riaa.ainfo.id215425
riaa.ainfo.lastupdate2026-03-10
dc.contributor.institutionCARINA UBIRAJARA DE FARIA, UNIVERSIDADE PARA O DESENVOLVIMENTO DO ESTADO E DA REGIÃO DO PANTANAL; CLAUDIO ULHOA MAGNABOSCO, CNPAF; ARCADIO DE LOS REYES, UNIVERSIDADE FEDERAL DE GOIÁS; RAYSILDO BARBOSA LÔBO, UNIVERSIDADE DE SÃO PAULO; LUIZ ANTÔNIO FRAMARTINO BEZERRA, UNIVERSIDADE DE SÃO PAULO; ROBERTO DANIEL SAINZ, UNIVERSITY OF CALIFORNIA.
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