Decreasing broiler crude protein requirement by methionine supplementation.

摘要: The experiment was conducted with two levels of protein (23 and 20% in starter, 20 18% grower) three methionine (NRC, 110 NRC 120% starter grower stages). No significant differences were found for protein, or their interaction on Feed Intake (FI) Conversion Ration (FCR) grower, the exception an CP 0.46% (120% ofNRC) which significantly improved (p < 0.05) FCR compared 0.38% (NRC) level ofmethionone, at stage. Carcass yield breast meat increased by 23% Crude Protein (CP) to starter. In contrast, abdominal fat decreased 23 diet respectively other as well high methionine. (0.46%) carcass yield, a increase stage both 0.42% (110% NRC) levels. A similar effect 0.5% 0.55% 21 days, 42 days age CP. Finally, results this study, have suggested that methionine/CP ratio could be adjusted 0.024% (0.024 g methionine/per crude protein) 0.023% grower. Decreased diet, reduction achieved these ratios methionine/protein.