EL-HUSSEINY, O.M.; ABO-EL-ELLA, M.A.; ABD-ELSAMEE, M.O.; ABD-ELFATTAH, Magda M. Response of Broilers Performance to Dietary Betaine and Folic Acid at Different Methionine Levels. International Journal of Poultry Science, Pakistan, v. 6, n. 7, p. 515–523, 2007. DOI: 10.3923/ijps.2007.515.523. Disponível em: https://ijpsjournal.org/index.php/ijps/article/view/804. Acesso em: 22 sep. 2025.