CAO , T.; WEIL, J.T.; MAHARJAN, P.; LU, J.; COON, C.N. The Digestible Methionine and Cystine Requirements for Commercial Layers. International Journal of Poultry Science, Pakistan, v. 19, n. 5, p. 232–243, 2020. DOI: 10.3923/ijps.2020.232.243. Disponível em: https://ijpsjournal.org/index.php/ijps/article/view/2596. Acesso em: 22 sep. 2025.