<b>Quality of aged meat of young bulls fed crude glycerin associated with different roughage sources

  • Mirela Machado Universidade Estadual Paulista "Júlio de Mesquita Filho"
  • Josiane Fonseca Lage Bellman, Nutreco Nutrição Animal
  • Andressa Ferreira Ribeiro Universidade Estadual Paulista "Júlio de Mesquita Filho"
  • Lais Regina Simonetti Universidade Estadual Paulista "Júlio de Mesquita Filho"
  • Emanuel Almeida Oliveira Universidade Estadual Paulista "Júlio de Mesquita Filho"
  • Telma Teresinha Berchielli Universidade Estadual Paulista "Júlio de Mesquita Filho"
Palavras-chave: beef cattle, sugar cane bagasse, fatty acids, glycerol, tenderness

Resumo

This trial aimed to evaluate the inclusion of 10%  of crude glycerin associated with roughage sources on the quality of meat aged for 1, 7 or 14 days post mortem of Nellore young bulls. Thirty feedlot animals (n = 10) with initial body weight of 416.70 ± 24.74 kg and 18 months of age were assigned to three treatments: corn silage (CS), sugar cane (SC) and sugar cane bagasse (CB), using a completely randomized design. After 85 days of feeding, animals were slaughtered with 554.51 ± 38.51 kg. Samples of longissimus muscle were collected, after carcass chilling, and vacuum-packed. Diets influenced pH, meat color and subcutaneous fat (SF) (p > 0.05). Animals fed CS showed higher values of b* in SF (p < 0.05). Differences were not found in the meat fatty acid profile (p > 0.05). Aging times influenced pH and shear force of beef (p < 0.05). Beef aged for 14 days showed higher pH (5.90) and lower shear force (2.40 kgf). Diets containing 10% crude glycerin in the DM associated with CS, SC or CB had no effect on the fatty acid profile in beef. The aging process for 14 days reduces shear force, improving meat quality.

 

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Biografia do Autor

Josiane Fonseca Lage, Bellman, Nutreco Nutrição Animal

Zootecnista, Dra. em Nutrição e Produção de Ruminantes

Supervisora de P&D - Nutreco Animal Nutrition

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Publicado
2015-05-21
Como Citar
Machado, M., Lage, J. F., Ribeiro, A. F., Simonetti, L. R., Oliveira, E. A., & Berchielli, T. T. (2015). <b&gt;Quality of aged meat of young bulls fed crude glycerin associated with different roughage sources. Acta Scientiarum. Animal Sciences, 37(2), 167-172. https://doi.org/10.4025/actascianimsci.v37i2.25695
Seção
Produção Animal

0.9
2019CiteScore
 
 
29th percentile
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