Effect of phytase supplementation on Labeo rohita fingerlings that are fed by phytase supplemented ddgs based diet

Phytate is not hydrolyzed by fish because natural phytase activity not present in some agastric fishes, phytate is present in grain products as the main form of phosphorus. The present study was aimed to check the effect of phytase supplementation on muscle proximate composition in Labeo rohita fingerlings that are fed by phytase supplemented distiller’s dried grain with soluble. Six experimental diets were prepared by supplementing phytase at graded levels. D1 diet contains no supplemented phytase, while, D2, D3, D4, D5 contain 250, 500, 750, 1000, and 1250 FTU/kg phytase, respectively. The experiment continues for eight weeks. Water quality parameters including pH, temperature, and dissolved oxygen were controlled throughout the experiment. Results were analyzed through the Student-Newman-Keuls test for significant differences. Supplementation of phytase decreased the moisture and fat content of muscles in L. rohita fingerlings. Supplementation of phytase increases the crude protein and crude ash content of muscles in L. rohita fingerlings. In conclusion, phytase showed randomized responses to muscle composition.