Feeding strategies impact animal growth and beef color and tenderness

Autor(es):Mostrar menos -

Morales Gomez, Juan F. ^[1] ; Antonelo, Daniel S. ^[2] ; Beline, Mariane ^[1] ; Pavan, Bruna ^[1] ; Bambil, Danilo B. ^[1] ; Fantinato-Neto, Paulo ^[1] ; Saran-Netto, Arlindo ^[1] ; Leme, Paulo Roberto ^[1] ; Goulart, Rodrigo S. ^[1] ; Gerrard, David E. ^[3] ; Silva, Saulo L. ^[1]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Coll Anim Sci & Food Engn, Dept Anim Sci, BR-13635900 Pirassununga, SP - Brazil

^[2] Univ Sao Paulo, Coll Vet Med & Anim Sci, Dept Anim Nutr & Prod, BR-13635900 Pirassununga, SP - Brazil

^[3] Virginia Tech, Dept Anim & Poultry Sci, Blacksburg, VA 24061 - USA

• Tipo de documento: Artigo Científico
• Fonte: MEAT SCIENCE; v. 183, JAN 2022.
• Citações Web of Science: 0

Resumo

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, pastureand 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. (AU)

• Processo FAPESP: 18/01434-8 - Efeito do sistema de terminação, taxa de ganho e critério de abate sobre as características de qualidade de carne de bovinos Angus x Nelore
• Beneficiário: Juan Fernando Morales Gomez
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 18/25320-1 - Efeito do sistema de terminação de bovinos sobre o metabolismo postmortem
• Beneficiário: Juan Fernando Morales Gomez
• Modalidade de apoio: Bolsas no Exterior - Estágio de Pesquisa - Doutorado