Keywords
valine, isoleucine, leucine, modeling, least-cost formulation
Abstract
Renewed interest, especially in the United States, has sparked in assessing branched-chain amino acid interactions in practical diets for broilers. Indeed, as L-valine enters formulation bird nitrogen excesses are reduced as diet protein falls to the new first limiting amino acid (e.g., isoleucine, arginine, or tryptophan). For a United States based example, the result is less oilseeds and more gains, which typically result in increased inclusions in corn or corn by-products, coupled with a concomitant increase in dietary leucine. The proceedings outline the foundations of the branched-chain amino acid early research, antagonism studies, and a meta-analysis conducted on publications with Cobb and Ross birds from 2000 to present. Results indicate that branched-chain amino acid interactions can occur in broilers fed on practical diets, and that responses vary by strain.
Recommended Citation
Maynard, C. W., Gbur, E. E., Ly, V., Le, M., Ngan Le, T. H., Caldas, J., & Kidd, M. T. (2021). Assessing Dietary Branched-Chain Amino Acids to Achieve Linear Programming Goals through Model Extrapolation and Empirical Research. Proceedings of the Arkansas Nutrition Conference, 2021(1), Article 10. Retrieved from https://scholarworks.uark.edu/panc/vol2021/iss1/10