Đánh giá khả năng thay thế bột cá của Pro-Pep F trong thức ăn của cá rô phi đỏ (Oreochromis spp.) trong giai đoạn giống

The study was carried out in a recirculation system of the Experimental Station, Faculty of Fisheries, Nong Lam University to evaluate the feasibility of using Pro-pep F as a fish meal replacer  in  practical  diets  of  the  red  tilapia  (Oreochromis  spp.)  juvenile.  This  experiment consisted of 5 treatments: Treatment 1 (Fish meal: 12%; Pro-Pep F: 0%, served as a control treatment); Treatment 2 (Fish meal: 6%; Pro-Pep F: 7.2%); Treatment 3 (Fish meal: 0%; Pro-Pep F: 14.4%); Treatment 4 (Fish meal: 6%; Pro-Pep F: 6%); Treatment 5 (Fish meal: 0%; Pro-Pep F: 12%). Fish with initial weight of 5.0 g were randomly stocked into 80-L fiberglass tanks at 15fish/tank. There were 4 replicates for each treatment. The results showed that final mean weight, FCR and survival rate of the red tilapia in all 5 treatments were not significantly different (P>0.05). However these values belonged to Pro-Pep F supplementation treatments were  higher  than  that  of  the  control  treatment.  The  results  indicated  that  Pro-Pep  F  could completely replace fish meal in practical diets for red tilapia juvenile.