LIEN, R.J.; HESS, J.B.; GIESEN, A.F.; YERSIN, A.G. Influence of 2-hydroxy-4-(Methylthio)butanoic Acid on Early Egg and Chick Weights of Broiler Breeders. International Journal of Poultry Science, Pakistan, v. 2, n. 6, p. 430–437, 2003. DOI: 10.3923/ijps.2003.430.437. Disponível em: https://ijpsjournal.org/index.php/ijps/article/view/127. Acesso em: 22 sep. 2025.