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Residual feed intake, carcass traits and meat quality in Nellore cattle.
Fidelis, H A; Bonilha, S F M; Tedeschi, L O; Branco, R H; Cyrillo, J N S G; Mercadante, M E Z.
Afiliación
  • Fidelis HA; Instituto de Zootecnia, Centro APTA Bovinos de Corte, Sertãozinho, SP 14.160-970, Brazil.
  • Bonilha SFM; Instituto de Zootecnia, Centro APTA Bovinos de Corte, Sertãozinho, SP 14.160-970, Brazil. Electronic address: sbonilha@iz.sp.gov.br.
  • Tedeschi LO; Texas A&M University, Department of Animal Science, College Station, TX 77845, USA.
  • Branco RH; Instituto de Zootecnia, Centro APTA Bovinos de Corte, Sertãozinho, SP 14.160-970, Brazil.
  • Cyrillo JNSG; Instituto de Zootecnia, Centro APTA Bovinos de Corte, Sertãozinho, SP 14.160-970, Brazil.
  • Mercadante MEZ; Instituto de Zootecnia, Centro APTA Bovinos de Corte, Sertãozinho, SP 14.160-970, Brazil.
Meat Sci ; 128: 34-39, 2017 Jun.
Article en En | MEDLINE | ID: mdl-28189991
A total of 127 Nellore bulls classified as low and high residual feed intake (RFI), from three selection lines, were evaluated in five experiments aiming to identify associations between RFI, carcass, and meat quality traits. Feedlot performance, carcass traits, and meat quality of Longissimus muscle were evaluated. A mixed model including the fixed effects of RFI class, selection line, interaction between RFI class and selection line, and age at slaughter as a covariate, and the random effects of diet within experiment and experiment was used, with means compared by the t-test. Feed intake average difference was 0.962kg/day; low RFI animals consumed 0.479kg/day less feed and high RFI animals consumed 0.483kg/day more feed than expected. No differences between RFI classes were detected for most of studied variables, demonstrating the absence of unfavorable associations between RFI and carcass and meat quality traits. Low RFI Nellore animals use feed efficiently and produce good quality carcasses and meat.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Ingestión de Energía / Calidad de los Alimentos / Músculo Esquelético / Carne / Modelos Biológicos Tipo de estudio: Evaluation_studies / Prognostic_studies Límite: Animals País/Región como asunto: America do sul / Brasil Idioma: En Revista: Meat Sci Asunto de la revista: CIENCIAS DA NUTRICAO Año: 2017 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: Reino Unido
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Ingestión de Energía / Calidad de los Alimentos / Músculo Esquelético / Carne / Modelos Biológicos Tipo de estudio: Evaluation_studies / Prognostic_studies Límite: Animals País/Región como asunto: America do sul / Brasil Idioma: En Revista: Meat Sci Asunto de la revista: CIENCIAS DA NUTRICAO Año: 2017 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: Reino Unido