Brown, J., J. Firman, S. Sun, and A. Kamyab. “Digestible Sulfur Amino Acid Requirements for Maintenance in the Starting Turkey”. International Journal of Poultry Science 4, no. 10 (September 15, 2005): 737–740. Accessed September 22, 2025. https://ijpsjournal.org/index.php/ijps/article/view/421.