Carcass Physical Composition and Yield of bovine Commercial Brazilian Cuts from Two Genetic Groups Slaughtered at Three Weights

Authors

  • Fabiana Maldonado Secretaria de Agricultura e Abastecimento do Estado de São Paulo, Agência Paulista de Tecnologia dos Agronegócios, Polo Regional de Desenvolvimento Tecnológico dos Agronegócios do Noroeste Paulista, Votuporanga, SP
  • Augusto César de Queiroz Universidade Federal de Viçosa, Departamento de Zootecnia, Viçosa, MG
  • Guilherme Fernando Alleoni Secretaria de Agricultura e Abastecimento do Estado de São Paulo, Agência Paulista de Tecnologia dos Agronegócios, Instituto de Zootecnia, Centro de Pesquisa e Desenvolvimento em Nutrição Animal e Pastagem, Nova Odessa, SP
  • Flávio Dutra de Resende Secretaria de Agricultura e Abastecimento do Estado de São Paulo, Agência Paulista de Tecnologia dos Agronegócios, Polo Regional de Desenvolvimento Tecnológico dos Agronegócios da Alta Mogiana, Colina, SP
  • Paulo Roberto Leme Universidade de São Paulo, Faculdade de Zootecnia e Engenharia de Alimentos, Departamento de Zootecnia, Pirassununga, SP
  • Celso Boin Consultoria de Planejamento Ltda., São Paulo, SP
  • Romeu Fernandes Nardon Secretaria de Agricultura e Abastecimento do Estado de São Paulo, Agência Paulista de Tecnologia dos Agronegócios, Polo Regional de Desenvolvimento Tecnológico dos Agronegócios do Médio Paranapanema, Assis, SP
  • João José Assumpção Abreu Demarchi Secretaria de Agricultura e Abastecimento do Estado de São Paulo, Agência Paulista de Tecnologia dos Agronegócios, Polo Regional de Desenvolvimento Tecnológico dos Agronegócios do Extremo Oeste, Andradina, SP
  • Rodrigo Vidal Oliveira Universidade Estadual Paulista, Faculdade de Ciências Agrárias e Veterinárias, Departamento de Zootecnia, Jaboticabal, SP

Keywords:

crossbreed, feedlot

Abstract

Nine steers ¾ Nelore-¼ Canchim and nine ¾ Nellore-¼ Caracu, with a live weight average initialof 312 and 303kg, respectively, and 22 months of age, were used to evaluate the effects of the genetic groups and slaughter weights (430, 470 and 530kg) on the carcasses physical composition and commercial Brazilian cuts yields. The animals were fed on feedlot and allotted in a completely randomized design, in a factorial arrangement 2 x 3 (genetic groups and slaughter weights), with three replicates. The animals were slaughtered as they reached the pre-established weights and the ½ right cold carcass (RCC) was separate between the 5th and 6th ribs in forequarter, pistol cut (PSC) and ribs which were weighted, boned and separated in edible portion, fat trims and bones. No differences were observed between the genetic groups in the traits analyzed, possibly due to the likeness at genetic composition of animals, since they were mainly from Nelore breed. The slaughter weights influenced the proportion of the forequarter, with was greater in the lighter group. Larger yields of bones and edible portion were verified in the lighter weight group, as well as smaller yields of fat trims. However, the heavier slaughtered animals produced carcasses excessively ended, what contributed to the increase in the proportion of fat trims. The genetic groups and the slaughter weight produced carcasses attended to the demands of the market in weight terms, finishing degree and yields of the commercial Brazilian cuts.

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Published

2007-02-22

Issue

Section

ANIMAL NUTRITION

How to Cite

Carcass Physical Composition and Yield of bovine Commercial Brazilian Cuts from Two Genetic Groups Slaughtered at Three Weights. (2007). Bulletin of Animal Husbandry, 64(2), 123-130. http://bia.iz.sp.gov.br/index.php/bia/article/view/1241

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