Use este identificador para citar ou linkar para este item: https://locus.ufv.br//handle/123456789/19767
Tipo: Artigo
Título: Effect of post-weaning growth rate on carcass traits and meat quality of Nellore cattle
Autor(es): Silva, Luiz H.P.
Paulino, Pedro V.R.
Assis, Gutierrez J.F.
Assis, Debora E.F.
Estrada, Mauricio M.
Silva, Matheus C.
Silva, Jaqueline C.
Martins, Taiane S.
Valadares Filho, Sebastião C.
Paulino, Mário F.
Chizzotti, Mario L.
Abstract: This study evaluated the effects of growth rate during post-weaning growing phase on carcass traits and beef quality. Thirty-four Nellore young bulls were randomly assigned to one of three treatments: LOW, MEDIUM or HIGH growth rate during post-weaning growing phase followed by high growth rate in the finishing phase. The growth rate affected (P < 0.05) all carcass traits evaluated at the end of post-weaning growing phase, except ultimate pH. Carcass dressing was greatest (P < 0.05) for the HIGH growth rate group in both phases. Beef from the HIGH group exhibited the greatest (P < 0.05) sarcomere length and a* and b* colour values at the end of post-weaning growing phase. However, post-weaning growth rate did not affected (P > 0.05) collagen content and solubility, myofibrillar fragmentation index and Warner-Bratzler shear force. Our data suggest that a low post-weaning growth rate produces lighter and leaner carcasses, but it does not affect meat quality traits in Nellore young bulls.
Palavras-chave: Compensatory gain
Meat tenderness
Myofibrillar fragmentation index
Sarcomere length
Editor: Meat Science
Tipo de Acesso: Elsevier Ltd.
URI: https://doi.org/10.1016/j.meatsci.2016.10.005
http://www.locus.ufv.br/handle/123456789/19767
Data do documento: 12-Out-2016
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