Comparação de Diferentes Modelos para Avaliação Genética de Características de Desempenho Pós-desmama em Suínos

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dc.contributor.authorDa Costa Pita, Fabiano Veraldo
dc.contributor.authorDe Albuquerque, Lucia Galvão [UNESP]
dc.contributor.institutionUniversidade Federal de Viçosa (UFV)
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.date.accessioned2022-04-28T19:56:38Z
dc.date.available2022-04-28T19:56:38Z
dc.date.issued2001-11-01
dc.description.abstractThe aim of this work was to evaluate different models in which the random effects of litter and maternal genetic (correlated or not with the direct additive genetic effect) were added in sequence to the direct additive genetic random effect. There were on farm records of 17,563 Landrace (LD) and 8679 Large White (LW) animal. The comparison of the models and significance levels of each effect added were determined by the Likelihood Ratio test. Variance components were estimated using the Restricted Maximum Likelihood method. For LD breed the best model included the direct and maternal genetic effects, besides the litter effect. For the LW breed the best model included the direct genetic and litter effects. Heritability estimates of average daily gain, off-test age, and number of days on test were, respectively, 0.28, 0.24, and 0.24 for LD breed, and 0.28, 0.27, and 0.23 for LW breed. The litter effect was between 0.08 and 0.12 for both breeds. The maternal effect in LD breed was of small magnitude (0.01 to 0.03). Correlations between direct and maternal genetic effects were null or negative.en
dc.description.affiliationUniv. Federal de Viçosa Curso Pos-graduacao em Genet. M.
dc.description.affiliationFCAV - UNESP/Jaboticabal Depto. de Zootecnia Setor de Melhoramento Animal
dc.description.affiliationUnespFCAV - UNESP/Jaboticabal Depto. de Zootecnia Setor de Melhoramento Animal
dc.format.extent1720-1727
dc.identifier.citationRevista Brasileira de Zootecnia, v. 30, n. 6, p. 1720-1727, 2001.
dc.identifier.issn0100-4859
dc.identifier.scopus2-s2.0-0347870429
dc.identifier.urihttp://hdl.handle.net/11449/224462
dc.language.isopor
dc.relation.ispartofRevista Brasileira de Zootecnia
dc.sourceScopus
dc.subjectAverage daily gain
dc.subjectLitter effect
dc.subjectMaternal effect
dc.subjectOff-test age
dc.titleComparação de Diferentes Modelos para Avaliação Genética de Características de Desempenho Pós-desmama em Suínospt
dc.title.alternativeComparison of Different Models for Genetic Evaluation of Post-weaning Performance Traits in Swineen
dc.typeArtigo

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