1. Tilapia: alternative protein sources in tilapia feed formulation;Alceste;Aquac. Mag. Online,2000
2. Al-Owafeir, M., 1999. The effect of dietary saponin and tannin on growth performance and digestion in Oreochromis niloticus and Claias gariepinus. PhD thesis, Institute of Agriculture, University of Stirling, UK, p. 220.
3. Effects of dietary carbohydrate and fiber on the tilapia Oreochromis niloticus (L.);Anderson;Aquaculture,1984
4. Official Methods of Analysis,1990
5. Effects of dietary tannic acid and quebracho tannin on growth performance and metabolic rates of common carp (Cyprinus carpio L.);Becker;Aquaculture,1999