McGill, E., A. Kamyab, and J.D. Firman. “Low Crude Protein Corn and Soybean Meal Diets With Amino Acid Supplementation for Broilers in the Starter Period 1. Effects of Feeding 15% Crude Protein”. International Journal of Poultry Science 11, no. 3 (February 15, 2012): 161–165. Accessed September 22, 2025. https://ijpsjournal.org/index.php/ijps/article/view/1771.