Deif, E.A., A. Galal, M.M. Fathi, and A. Zein El-Dein. “Immunocompetence of Two Broiler Strains Fed Marginal and High Protein Diets”. International Journal of Poultry Science 6, no. 12 (November 15, 2007): 901–911. Accessed September 22, 2025. https://ijpsjournal.org/index.php/ijps/article/view/876.