How to cite this article:
Naela M. Ragaa, Nermeen M. Abu Elala, Azza M. Kamal and N.F. Kamel, 2017. 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, 16: 148-154. DOI: 10.3923/pjn.2017.148.154 URL: https://scialert.net/abstract/?doi=pjn.2017.148.154
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