A 60 days experiment was conducted in lab conditions to evaluate the potentiality of selected probiotics on growth performance, feed efficiency and nutrient utilization to develop cost-effective quality feed for Mystus cavasius. The uniform size fry (average weight ± g) were randomly distributed in five experimental groups into triplicates in a series of cylindrical fiberglass tank (70L each) containing 50 fishes each following completely randomized design (CRD). | Evaluation of selected dietary probiotics on growth performance nutrient utilization and body carcass composition of mystus cavasius Hamilton 1822 Fry