SHELTON, J.L.; SOUTHERN, L.L. Interactive Effects of Zinc, Copper and Manganese in Diets for Broilers. International Journal of Poultry Science, Pakistan, v. 6, n. 7, p. 466–469, 2007. DOI: 10.3923/ijps.2007.466.469. Disponível em: https://ijpsjournal.org/index.php/ijps/article/view/795. Acesso em: 22 sep. 2025.