Amen, Mahmood H.M., and Hazim J. Al-Daraji. “Effect of Dietary Zinc Supplementation on Some Seminal Plasma Characteristics of Broiler Breeders’ Males”. International Journal of Poultry Science 10, no. 10 (October 15, 2011): 814–818. Accessed September 22, 2025. https://ijpsjournal.org/index.php/ijps/article/view/1705.