Substitution of fermented soybean juice dregs on catfish (Pangasius pangasius) feed formulation toward specific growth rate, efficiency of feed, feed conversion ratio, digestibility of crude protein, and energy

The highest cost in catfish farming is feed. One of the imported feed ingredients is fermented dregs flour of soybean juice. This study aims to determine the effect of substitution of soybean meal flour with fermented dregs flour of soybean juice in catfish formulation feed (Pangasius pangasius) toward specific growth rate, the efficiency of feed, feed conversion ratio, digestibility of crude protein and energy. This research was experimental using 5 treatments which included P0 (100% soybean meal flour), P1 (90% soybean meal flour + 10% fermented dregs flour of soybean juice), P2 (80% soybean meal flour + 20% fermented dregs flour of soybean juice), P3 (70% soybean meal flour + 30% fermented dregs flour of soybean juice), P4 (60% soybean meal flour + 40% fermented dregs flour of soybean juice) with 4 times treatments repetition. The main parameters observed were specific growth rate, the efficiency of feed, feed conversion ratio, digestibility of crude protein, and energy. The results showed that the substitution of soybean meal of specific growth rate, the efficiency of feed, feed conversion ratio, digestibility of crude protein and energy were not significantly different (p> 0.05).