Growth curves of carcass traits obtained by ultrasonography in three lines of Nellore cattle selected for body weight

Página do item simplificado
dc.contributor.authorCoutinho, C. C. [UNESP]
dc.contributor.authorMercadante, M. E. Z.
dc.contributor.authorJorge, A. M. [UNESP]
dc.contributor.authorPaz, C. C. P.
dc.contributor.authorEl Faro, L.
dc.contributor.authorMonteiro, F. M.
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionInst Zootecnia
dc.date.accessioned2018-11-26T15:28:10Z
dc.date.available2018-11-26T15:28:10Z
dc.date.issued2015-01-01
dc.description.abstractThe effect of selection for postweaning weight was evaluated within the growth curve parameters for both growth and carcass traits. Records of 2404 Nellore animals from three selection lines were analyzed: two selection lines for high postweaning weight, selection (NeS) and traditional (NeT); and a control line (NeC) in which animals were selected for postweaning weight close to the average. Body weight (BW), hip height (HH), rib eye area (REA), back fat thickness (BFT), and rump fat thickness (RFT) were measured and records collected from animals 8 to 20 (males) and 11 to 26 (females) months of age. The parameters A (asymptotic value) and k (growth rate) were estimated using the nonlinear model procedure of the Statistical Analysis System program, which included fixed effect of line (NeS, NeT, and NeC) in the model, with the objective to evaluate differences in the estimated parameters between lines. Selected animals (NeS and NeT) showed higher growth rates than control line animals (NeC) for all traits. Line effect on curves parameters was significant (P < 0.001) for BW, HH, and REA in males, and for BFT and RFT in females. Selection for postweaning weight was effective in altering growth curves, resulting in animals with higher growth potential.en
dc.description.affiliationUniv Estadual Julio de Mesquita Filho, Fac Med Vet & Zootecnia, Fazenda Expt Lageado, Botucatu, SP, Brazil
dc.description.affiliationInst Zootecnia, Ctr APTA Bovinos Corte, Sertaozinho, SP, Brazil
dc.description.affiliationUnespUniv Estadual Julio de Mesquita Filho, Fac Med Vet & Zootecnia, Fazenda Expt Lageado, Botucatu, SP, Brazil
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.format.extent14076-14087
dc.identifierhttp://dx.doi.org/10.4238/2015.October.29.27
dc.identifier.citationGenetics And Molecular Research. Ribeirao Preto: Funpec-editora, v. 14, n. 4, p. 14076-14087, 2015.
dc.identifier.doi10.4238/2015.October.29.27
dc.identifier.issn1676-5680
dc.identifier.urihttp://hdl.handle.net/11449/158577
dc.identifier.wosWOS:000364582000105
dc.language.isoeng
dc.publisherFunpec-editora
dc.relation.ispartofGenetics And Molecular Research
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectFat thickness
dc.subjectLongissimus muscle area
dc.subjectNonlinear models
dc.subjectSelection
dc.subjectNellore cattle
dc.titleGrowth curves of carcass traits obtained by ultrasonography in three lines of Nellore cattle selected for body weighten
dc.typeArtigo
dcterms.rightsHolderFunpec-editora
unesp.author.lattes8878595413452908[3]
unesp.author.orcid0000-0002-9079-198X[3]

Arquivos

Coleções

Artigos