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Feedlot performance, feed efficiency and carcass traits in Nellore cattle selected for postweaning weight

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dc.contributor.authorLucila Sobrinho, Tatiana [UNESP]
dc.contributor.authorBonilha, Sarah Figueiredo Martins
dc.contributor.authorGonçalves, Heraldo César [UNESP]
dc.contributor.authorCastilhos, André Michel de [UNESP]
dc.contributor.authorMagnani, Elaine
dc.contributor.authorRazook, Alexander George
dc.contributor.authorBranco, Renata Helena
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionInstituto de Zootecnia
dc.date.accessioned2013-09-30T20:12:49Z
dc.date.accessioned2014-05-20T13:40:53Z
dc.date.available2013-09-30T20:12:49Z
dc.date.available2014-05-20T13:40:53Z
dc.date.issued2013-02-01
dc.description.abstractThe objective of this study was to evaluate the correlated responses to selection for growth in feed efficiency and carcass traits of Nellore animals. A total of 121 animals of the Nellore control (NeC) and selection herds were subjected to performance testing and classified regarding residual feed intake (RFI). Sixty-seven of these animals were selected and finished until reaching 4 mm of subcutaneous fat thickness between the 12th and 13th ribs. The animals were slaughtered at a mean age of 541 days and mean live weight of 423 kg for NeS and of 363 kg for NeC, and carcass traits were measured. Animals in NeS presented higher initial and slaughter weights, dry matter intake, hot and cold carcass weight, weight of retail cuts, and carcass yield than NeC animals for the same slaughter age and feedlot time. No significant differences in RFI were observed between herds, showing that the weight gain from selection for growth did not cause changes in the energy efficiency of the animals.en
dc.description.affiliationUNESP FMVZ
dc.description.affiliationInstituto de Zootecnia
dc.description.affiliationUnespUNESP FMVZ
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.format.extent125-129
dc.identifierhttp://dx.doi.org/10.1590/S1516-35982013000200007
dc.identifier.citationRevista Brasileira de Zootecnia. Sociedade Brasileira de Zootecnia, v. 42, n. 2, p. 125-129, 2013.
dc.identifier.doi10.1590/S1516-35982013000200007
dc.identifier.fileS1516-35982013000200007.pdf
dc.identifier.issn1516-3598
dc.identifier.lattes7787314478210146
dc.identifier.scieloS1516-35982013000200007
dc.identifier.urihttp://hdl.handle.net/11449/14192
dc.identifier.wosWOS:000316123300007
dc.language.isoeng
dc.publisherSociedade Brasileira de Zootecnia
dc.relation.ispartofRevista Brasileira de Zootecnia
dc.relation.ispartofsjr0,337
dc.rights.accessRightsAcesso aberto
dc.sourceSciELO
dc.subjectbeef cattleen
dc.subjectcarcass yielden
dc.subjectmeat cutsen
dc.subjectselectionen
dc.titleFeedlot performance, feed efficiency and carcass traits in Nellore cattle selected for postweaning weighten
dc.typeArtigo
dspace.entity.typePublication
unesp.author.lattes7787314478210146
unesp.author.orcid0000-0002-7481-5048[5]
unesp.author.orcid0000-0003-2126-0023[7]
unesp.author.orcid0000-0002-8055-4112[2]
unesp.campusUniversidade Estadual Paulista (UNESP), Faculdade de Medicina Veterinária e Zootecnia, Botucatupt
unesp.departmentProdução Animal - FMVZpt

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Botucatu - FMVZ - Faculdade de Medicina Veterinária e Zootecnia