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Heritability estimates and genetic correlations for body weight and scrotal circumference adjusted to 12 and 18 months of age for male Nellore cattle

dc.contributor.authorFrizzas, O. G. [UNESP]
dc.contributor.authorGrossi, D. A. [UNESP]
dc.contributor.authorBuzanskas, M. E. [UNESP]
dc.contributor.authorPaz, C. C. P.
dc.contributor.authorBezerra, L. A. F.
dc.contributor.authorLobo, R. B.
dc.contributor.authorOliveira, J. A. [UNESP]
dc.contributor.authorMunari, D. P. [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionAgência Paulista de Tecnologia dos Agronegócios (APTA)
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionANCP
dc.date.accessioned2014-05-20T15:34:18Z
dc.date.available2014-05-20T15:34:18Z
dc.date.issued2009-03-01
dc.description.abstractHeritability estimates and genetic correlations were obtained for body weight and scrotal circumference, adjusted, respectively, to 12 (BW12 and SC12) and 18 (BW18 and SC18) months of age, for 10 742 male Nellore cattle. The adjustments to SC12 and SC18 were made using a nonlinear logistic function, while BW12 and BW18 were obtained by linear adjustment. The contemporary groups (CGs) were defined from animals born on the same farm, in the same year and birth season. The mean heritability estimates obtained using the restricted maximum likelihood method in bi-trait analysis were 0.25, 0.25, 0.29 and 0.42 for BW12 BW18, SC12 and SC18, respectively. The genetic correlations were 0.30 +/- 0.11, 0.21 +/- 0.13, 0.21 +/- 0.11, -0.08 +/- 0.15, 0.16 +/- 0.12 and 0.89 +/- 0.04 between the traits BW12 and BW18; BW12 and SC12; BW12 and SC18; BW18 and SC12; BW18 and SC18; and SC12 and SC18. The heritability for SC18 was considerably greater than for SC12 suggesting that this should be included as a selection criterion. The genetic correlation between BW18 and SC12 was close to zero, indicating that these traits did not influence each other The contrary occurred between SC12 and SC18, indicating that selection using one of these could alter the other Because of the mean magnitudes of heritabilities in the various measurements of weight and scrotal perimeter it is suggested that the practice of individual selection for these traits is possible.en
dc.description.affiliationUNESP, FCAV, Dept Ciendas Exatas, BR-14884900 Jaboticabal, SP, Brazil
dc.description.affiliationUNESP, FCAV, Programa Posgrad Genet & Melhoramento Anim, BR-14884900 Jaboticabal, SP, Brazil
dc.description.affiliationAPTA SAA, Ribeirao Preto, SP, Brazil
dc.description.affiliationUSP, FMRP, Dept Genet, Ribeirao Preto, SP, Brazil
dc.description.affiliationANCP, Ribeirao Preto, SP, Brazil
dc.description.affiliationUnespUNESP, FCAV, Dept Ciendas Exatas, BR-14884900 Jaboticabal, SP, Brazil
dc.description.affiliationUnespUNESP, FCAV, Programa Posgrad Genet & Melhoramento Anim, BR-14884900 Jaboticabal, SP, Brazil
dc.format.extent347-351
dc.identifierhttp://dx.doi.org/10.1017/S175173110800373X
dc.identifier.citationAnimal. Cambridge: Cambridge Univ Press, v. 3, n. 3, p. 347-351, 2009.
dc.identifier.doi10.1017/S175173110800373X
dc.identifier.fileWOS000263537900003.pdf
dc.identifier.issn1751-7311
dc.identifier.lattes6064277731903249
dc.identifier.urihttp://hdl.handle.net/11449/42492
dc.identifier.wosWOS:000263537900003
dc.language.isoeng
dc.publisherCambridge University Press
dc.relation.ispartofAnimal
dc.relation.ispartofjcr1.870
dc.relation.ispartofsjr0,842
dc.rights.accessRightsAcesso aberto
dc.sourceWeb of Science
dc.subjectBeef cattleen
dc.subjectNonlinear modelen
dc.subjectGenetic parameteren
dc.subjectadjusted weightsen
dc.titleHeritability estimates and genetic correlations for body weight and scrotal circumference adjusted to 12 and 18 months of age for male Nellore cattleen
dc.typeArtigo
dcterms.licensehttp://journals.cambridge.org/action/displaySpecialPage?pageId=4676#
dcterms.rightsHolderCambridge Univ Press
dspace.entity.typePublication
unesp.author.lattes6064277731903249
unesp.campusUniversidade Estadual Paulista (UNESP), Faculdade de Ciências Agrárias e Veterinárias, Jaboticabalpt
unesp.departmentCiências Exatas - FCAVpt

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