Utilization of Fish Waste Flour as a Substitute for Fish Meal on the Growth Rate and Survival of Catfish (Clarias sp.)

Catfish (Clarias sp.) is a type of fish that is relatively easy to cultivate and has relatively fast growth. The quality and quantity of raw materials used to make feed must be considered to enhance the growth of catfish. One of the nutrients in the feed needed by catfish is protein. Protein is utilized by catfish for the growth process. One alternative protein source to fish meal is fish waste meal. Fish waste meal contains a protein content of 46.02% and has a lysine amino acid profile content of 3.68%. The aim of this research is to determine the effect of substituting fish waste flour for fish flour in feed on the growth performance of catfish. This study employed an experimental method with a completely randomized design (CRD) consisting of 5 treatments and 3 replications. The treatments tested were treatment A (40% fish waste flour), B (30% fish waste flour), C (20% fish waste flour), D (10% fish waste flour), and E (0% fish waste flour). The test fish used were Sangkuriang catfish with a weight of 2.85-3.15 grams with a stocking density of 10 per container. The catfish were reared in an aquarium with a water volume of 35 liters. Maintenance was carried out for 42 days with feeding three times a day at 08:00, 12:00, and 16:00. The research results indicate that substituting fish meal with fish waste flour significantly affects (P<0.05) TFC, FUE, FCR, SGR, and absolute weight. The best dose of fish meal substitution with fish waste flour is treatment B (30% substitution of fish waste flour), which can produce TPW of 191,61±1,910 gram; FUE of 61,74±0,441 % FCR of 1,62±0,012; SGR of 3,87±0,043% per day; and absolute weight of 11,98±0,193 grams.