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Energia metabolizável e aminoácidos digestíveis de coprodutos de trigo e de farinhas de origem animal em dietas para frangos de corte / [Metabolizable energy and digestible amino acids of wheat co-products and animal origin meals in broiler diets]

Silva, D. L; Dalólio, F. S; Albino, L. F. T; Rostagno, H. S; Ribeiro Júnior, V; Vieira, R. A.
Arq. bras. med. vet. zootec. (Online); 72(6): 2402-2407, Nov.-Dec. 2020. tab
Artigo em Português | LILACS | ID: biblio-1142310

Resumo

The objective of this study was to determine the metabolizable energy, standardized ileal amino acid digestibility (SIAAD) and digestible amino acid values of wheat meal (WM), wheat gluten meal (WGM), meat bone meal (MBM) and poultry-by-product meal (PPM) in diets for broilers. In the first experiment, the total excreta collection method was used, with 180 chicks with 14 days, distributed in a completely randomized design, with 4 feeds + reference diet with 6 replicates and 6 broilers each. In the second experiment, 180 broilers from 24 to 28 days old were used, distributed in a completely randomized design, with 4 feeds + one protein free diet with 6 replicates and 6 broilers each. The AMEn values of WM, WGM, MBM and PPM were 3052, 3174, 1556 and 3200 (kcal/kg), respectively. The average SIAAD of the essential and non-essential amino acids of WM, WGM, MBM and PPM were 74.21, 97.50, 69.28 and 83.08; 76.32, 96.42, 63.93 and 77.66, respectively. The values of the main digestible limiting amino acids were 0.18, 1.42, 0.41 and 0.94 for methionine; 0.20, 1.48, 1.73 and 2.73 for lysine; 0.23, 1.67, 0.72 and 1.89 for threonine; and 0.35, 3.22, 1.38 and 2.47 for valine, respectively for the feedstuffs in study.(AU)
Biblioteca responsável: BR68.1