Maximum percentage of chemical fish silage in the diet of Clarias gariepinus.

Abstract

The objetive of this study was to evaluate five moist diets with graded levels (40, 50, 60, 70 and 80) of chemical fish silage prepared with 2% sulfuric acid 98% (weigth/volumen), as a unique animal protein source. They were compared with comercial foods (20% of fish meal), Clarias gariepinus feeding. A completely randomised experimental design was development during 60 days. The results of the indicators such as: growth, feed utilization and suvival rate did not differ significantly (P> 0, 05), until 80% chemical fish silage, representing a $ 302, 00/ ton saving fish produced.