RAGAA, Naela M.; ABU ELALA, Nermeen M.; KAMAL, Azza M.; KAMEL, N.F. Effect of a Serine-protease on Performance Parameters and Protein Digestibility of Cultured Oreochromis niloticus Fed Diets with Different Protein Levels. Pakistan Journal of Nutrition, Pakistan, v. 16, n. 3, p. 148–154, 2017. DOI: 10.3923/pjn.2017.148.154. Disponível em: https://pjnonline.org/pjn/article/view/2447. Acesso em: 30 aug. 2025.