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dc.contributor.authorSilva, JAIIV-
dc.contributor.authorEler, J. P.-
dc.contributor.authorFerraz, JBS-
dc.contributor.authorGolden, B. L.-
dc.contributor.authorOliveira, H. N.-
dc.identifier.citationLivestock Production Science. Amsterdam: Elsevier B.V., v. 79, n. 1, p. 97-101, 2003.-
dc.description.abstractThe objective of the present study was to determine the possibility of using stayability (STAY) of dams as a selection criterion for fertility in the Nelore breed. STAY was defined as whether or not a cow calved in a herd at a specific age or after this age given that she had calved at an earlier age. The specific ages studied were 5 (STAY5), 6 (STAY6) and 7 (STAY7) years. Data on 53 271, 46 011 and 41517 animals were analyzed for the respective ages. The Method 91 was used to estimate the variance components and a maximum threshold a posteriori model was used to predict the genetic values. The analyses provided h(2) estimates of 0.117+/-0.003, 0.122+/-0.004 and 0.171+/-0.005 for STAY5, STAY6 and STAY7, respectively. The ease with which the trait can be recorded and the h 2 estimates indicate that the use of this trait as a selection criterion can contribute to increased dam fertility. (C) 2002 Elsevier B.V. B.V. All rights reserved.en
dc.publisherElsevier B.V.-
dc.sourceWeb of Science-
dc.subjectmethod Rpt
dc.subjectreproductive traitpt
dc.subjectthreshold modelpt
dc.titleHeritability estimate for stayability in nelore cowsen
dc.contributor.institutionUniversidade de São Paulo (USP)-
dc.contributor.institutionColorado State Univ-
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)-
dc.description.affiliationUniv São Paulo, BR-13630970 Pirassununga, SP, Brazil-
dc.description.affiliationColorado State Univ, Ft Collins, CO 80523 USA-
dc.description.affiliationUniv Estadual Paulista, BR-18618970 Botucatu, SP, Brazil-
dc.description.affiliationUnespUniv Estadual Paulista, BR-18618970 Botucatu, SP, Brazil-
dc.rights.accessRightsAcesso restrito-
dc.relation.ispartofLivestock Production Science-
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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