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

Author(s)

Rossi, L. G. ; Fiorentini, G. ; Jose Neto, A. ; Vieira, B. R. ; Malheiros, E. B. ; Borghi, T. H. ; Berchielli, T. T.

• Document type: Journal article
• Source: MEAT SCIENCE; v. 122, p. 1-6, DEC 2016.
• Web of Science Citations: 1

Abstract

Twenty-eight young Nellore bulls (395 +/- 32 kg initial body weight) were assigned to a completely randomized design (2 x 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. (C) 2016 Elsevier Ltd. All rights reserved. (AU)

• FAPESP's process: 11/00060-8 - GHG full account and mitigation strategies in Brachiaria pastures submitted to different management
• Grantee: Telma Teresinha Berchielli
• Support type: Research Projects - Thematic Grants
• FAPESP's process: 13/02418-2 - Meta-analytical study of responses from addition of lipidic sources in meat quality of beef cattle finished on pasture or feedlot
• Grantee: Giovani Fiorentini
• Support type: Scholarships in Brazil - Post-Doctorate