Peso de abate de machos não-castrados para produção do bovino jovem. 2. Peso, Idade e caracteristicas da carcaça

dc.contributor.authorDa Cruz, Geraldo Maria
dc.contributor.authorTullio, Rymer Ramiz [UNESP]
dc.contributor.authorEsteves, Sérgio Novita
dc.contributor.authorDe Alencar, Maurício Mello
dc.contributor.authorCordeiro, César Antônio
dc.contributor.institutionEmpresa Brasileira de Pesquisa Agropecuária (EMBRAPA)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-27T11:21:04Z
dc.date.available2014-05-27T11:21:04Z
dc.date.issued2004-05-01
dc.description.abstractTo obtain slaughter weight and age and the carcass characteristics of young bulls, a feedlot study was conducted at Embrapa Pecuária Sudeste. A total of 215 animals from Embrapa and private farms, 3/8 and 1/2 Blonde d'Aquitaine x Nellore; 1/2 Canchim x Nellore; 1/2 Limousin x Nellore; 1/2 Piedmontese x Nellore; Canchim (CA) and Nellore (NE), were used in 1994, 1995 and 1997. The slaughter weights (TRAT) of 400 (I); 440 (II) and 480 kg (III), except for NE cattle (380, 410 and 440 kg), were tested. All animals received, ad libitum, a diet based on 50% whole plant corn silage and 50% concentrate, on a dry matter basis. The live weight of the animals were obtained after fasting of 16 hours. The animals were slaughtered at a commercial packing plant. The data were submitted to the analysis of variance and the means were compared by SNK tests. The straightbred Canchim and all crossbred animals were slaughtered at 231, 252 and 273 kg of hot carcass weight with an average age of 15.4; 16.1 and 16.8 months, for TRAT I, II and III, respectively; while straightbred Nellore were slaughtered at 211.5; 219 and 228 kg hot carcass weight with an average age of 16.4; 17.2 and 17.5 months, for TRAT I, II and III, respectively. The estimated means of days on feedlot, yield of carcass, rib eye area and backfat thickness were: 70.9; 95.1 and 114.7 days; 57.2; 57.7 and 58.3%; 31.4; 30.9 and 30.2 cm 2/100 kg carcass weight; 2.5; 3.1 and 3.6 mm, for TRAT I, II and III, respectively. The percentage of saleable meat from the hindquarter gunbit cut was similar for all three slaughter weights; while a reduction of the percentage of bones was compensated for by an increase in the percentage of trimmed excess fat with an increase of slaughter weight. There were significant interactions between genetic group and TRAT for estimated slaughter weights, percentage of hindquarter, hindquarter gunbit and forequarter cuts and the rib eye area.en
dc.description.affiliationEmbrapa Pecuária Sudeste, C.P. 339, 13560-970, São Carlos, SP
dc.description.affiliationEmbrapa Pecuária Sudeste
dc.description.affiliationFCAV UNESP, Jaboticabal, SP
dc.description.affiliationCNPq
dc.description.affiliationUnespFCAV UNESP, Jaboticabal, SP
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.format.extent646-657
dc.identifierhttp://dx.doi.org/10.1590/S1516-35982004000300013
dc.identifier.citationRevista Brasileira de Zootecnia, v. 33, n. 3, p. 646-657, 2004.
dc.identifier.doi10.1590/S1516-35982004000300013
dc.identifier.file2-s2.0-31544432546.pdf
dc.identifier.issn1516-3598
dc.identifier.scieloS1516-35982004000300013
dc.identifier.scopus2-s2.0-31544432546
dc.identifier.urihttp://hdl.handle.net/11449/67723
dc.language.isopor
dc.relation.ispartofRevista Brasileira de Zootecnia
dc.relation.ispartofsjr0,337
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectBackfat thickness
dc.subjectCrossbred
dc.subjectCutability
dc.subjectFeedlot
dc.subjectGenetic group
dc.subjectRib eye area
dc.subjectAnimalia
dc.subjectBos taurus
dc.subjectZea mays
dc.titlePeso de abate de machos não-castrados para produção do bovino jovem. 2. Peso, Idade e caracteristicas da carcaçapt
dc.title.alternativeSlaughter weights for the production of young bull cattle. 2. Weight, age and carcass characteristicsen
dc.typeArtigo
dcterms.licensehttp://www.scielo.br/revistas/rbz/paboutj.htm#003

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