DEIF, E.A.; GALAL, A.; FATHI, M.M.; EL-DEIN, A. Zein. Immunocompetence of Two Broiler Strains Fed Marginal and High Protein Diets. International Journal of Poultry Science, Pakistan, v. 6, n. 12, p. 901–911, 2007. DOI: 10.3923/ijps.2007.901.911. Disponível em: https://ijpsjournal.org/index.php/ijps/article/view/876. Acesso em: 21 sep. 2025.