Effect of Combination of Trash Fish Meal and Wild Taro Leaves Flour on Growth Performance and Physical Characteristic of Juvenile Tilapia (Oreochromis niloticus) Feeds

Abstract

The research aims to analyze the effect of the combination of trash fish meal and taro leaves flour on juvenile tilapia (Oreochromis niloticus) growth performance, the sinking rate of the pellets, and the best ratio of combination feeds that can increase juvenile tilapia growth performance. Juvenile tilapia with a length of 5-8 cm and weight of 7.27 ± 2.12 g were reared for 42 days in the aquarium 25 L with a stocking density of ten fishes. The experiment used was a completed random design consisting of 4 treatments and four replications. Treatment A (control), B (15% taro leaf flour), C (substitution of fish meal by 50% trash fish meal) in combination with 20% taro leaf flour, and D (substitution fish meal by 100% trash fish meal) in combination with 25% of taro leaf flour. The results showed that a combination feed of trash fish meal and wild taro flour as a source of protein juvenile tilapia significantly different (P = 0.05) on the tilapia growth performance and the sinking rate of fish feed. Treatment C has the highest SGR (1.01 ± 0.55 g) with a feed sinking rate of 1.95 cms-1. So that the combination can reduce the level of use of fish meal and soybean meal.