Impact of ground soybean and starch levels on the quality of meat from feedlot young Nellore bulls

• Autor(a) principal: Rossi, L. G. [UNESP]
• Data de Publicação: 2016
• Outros Autores: Fiorentini, G. [UNESP], Jose Neto, A. [UNESP], Vieira, B. R. [UNESP], Malheiros, E. B. [UNESP], Borghi, T. H. [UNESP], Berchielli, T. T. [UNESP]
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositório Institucional da UNESP
• Texto Completo: http://dx.doi.org/10.1016/j.meatsci.2016.07.013; http://hdl.handle.net/11449/173292
• topic: Bos indicus; Corn silage; Fatty acid profile; Lipid; Meat quality

Twenty-eight young Nellore bulls (395 ± 32 kg initial body weight) were assigned to a completely randomized design (2 × 2 factorial design with 7 animals per treatment) to evaluate effects on the quality of meat. Diet treatments consisted of high (about 25%) or low (about 16%) starch levels, with or without ground soybean addition. Shear force was decreased in the meat from animals fed a low-starch diet (P = 0.0016). Meat from animals fed a high-starch diet had increased total concentrations of unsaturated (P = 0.0029) and monounsaturated fatty acids (P = 0.0253). Polyunsaturated fatty acid content increased in the meat from animals fed a diet containing soybean (P = 0.0121). High starch diets (> 25%) decreased the concentration of saturated fatty acids and increased the amount of unsaturated fatty acids in the meat from young Nellore bulls.