Effect of post-weaning growth rate on carcass traits and meat quality of Nellore cattle.
Meat Sci
; 123: 192-197, 2017 Jan.
Article
em En
| MEDLINE
| ID: mdl-27750086
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.
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Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Desmame
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Bovinos
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Músculo Esquelético
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Carne Vermelha
Limite:
Animals
Idioma:
En
Revista:
Meat Sci
Assunto da revista:
CIENCIAS DA NUTRICAO
Ano de publicação:
2017
Tipo de documento:
Article