Diferentes Perfis de Aminoácidos para Frangos de Corte no Período de 43 a 56 Dias de Idade

摘要: One experiment was conducted to evaluate the performance and carcass yield of two strains male broilers fed diets with different profiles amino acids from 43 56 days age. Data (weight gain, feed intake conversion), (dressing, breast, wing, legs, head, back percentage, abdominal fat) edible bowels (gizzard, liver heart) were collected. The experimental design involved eight treatments in a factorial 2x4 (two - Hubbard HI-Yield four acid profiles), 4 replicates 50 each. recommendations based on NRC (1994), Rostagno et al. (1992), Degussa (1997) AEC (1993). When compared, lysine level maintained constant, using (1994) as standard. No interaction observed among treatments. Broilers diet showed smaller weight gain worst conversion. better but conversion not affected. Dressing percentage did differ between However, results that had higher legs breast yield. Abdominal fat affected by also strains. Edible