Feeding strategies impact animal growth and beef color and tenderness.
Meat Sci
; 183: 108599, 2022 Jan.
Article
em En
| MEDLINE
| ID: mdl-34365253
ABSTRACT
The impact of growth rate (GR) and finishing regime (FR) on growth and meat quality traits of Angus x Nellore crossbred steers, harvested at a constant body weight (530 ± 20 kg) or time on feed (140 days), was evaluated. Treatments were 1) feedlot, high GR; 2) feedlot, low GR; 3) pasture, high GR and 4) pasture, low GR. Live body composition, carcass and meat quality traits were evaluated. High GR had greater impact on muscle and fat deposition in feedlot-finished, but not in pasture-finished animals. Feedlot animals had higher Longissimus muscle area, backfat thickness, meat luminosity and tenderness when compared to pasture groups. Moreover, pasture- and feedlot-finished animals with similar GR did not differ in the chromatic attributes of non-aged meat, regardless of endpoint. Thus, GR appeared to be the main factor driving beef chromatic parameters, while FR had a major impact on achromatic attributes and tenderness of meat.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Bovinos
/
Dieta
/
Carne Vermelha
Limite:
Animals
Idioma:
En
Revista:
Meat Sci
Assunto da revista:
CIENCIAS DA NUTRICAO
Ano de publicação:
2022
Tipo de documento:
Article
País de afiliação:
Brasil