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Dietary Amino Acid Responses of Broiler Chickens¹

W. A. Dozier, III^*,2, M. T. Kidd and A. Corzo

^* USDA, Agriculture Research Service, Poultry Research Unit, PO Box 5367, Mississippi State 39762-5367; and Department of Poultry Science, Mississippi State University, Mississippi State 39762

Correspondence: ² Corresponding author: bill.dozier{at}ars.usda.gov

In commercial practice, formulating diets to adequate amino acid (AA) minimums is critical to optimize live production and meat yield of broiler chickens. The modern broiler has lower feed intake per unit BW gain and also has the potential to accrete more white meat than the commercial broiler of previous decades. Broilers consuming less feed per unit of gain have led to formulating higher AA density diets in commercial production for improved performance and meat yield. This manuscript reviews current literature in dietary AA density. In addition, it provides estimates of consumption and dietary percentages of critical AA needed to optimize growth and meat yield calculated from published research.

Key Words: amino acid • broiler • lysine • methionine • nutrient density

¹ Mention of trade names or commercial products in this publication is solely for the purpose of providing specific information and does not imply recommendation or endorsement by the USDA.