Substitusi Tepung Kedelai dengan Tepung Daun Indigofera Zollnigeriana dalam Formulasi Pakan Benih Ikan Patin Siam (Pangasius hypophthalmus)

Tujuan penelitian ini adalah untuk mengevaluasi tingkat substitusi tepung kedelai terhadap tepung daun indigofera (Zollingeriana) dalam formulasi pakan buatan terhadap kinerja produksi ikan patin siam (Pangasius hypophthalmus). Penelitian ini dirancang menggunakan Rancangan Acak Lengkap (RAL), dengan empat perlakuan dan tiga ulangan. Perlakuan yang digunakan yaitu rasio perbandingan substitusi tepung kedelai dan tepung daun indigofera, P0= (40% : 0%), P1= (36% : 4%), P2= (32% : 8%), P3= (28% : 12%). Ikan yang digunakan adalah benih ikan patin siam berukuran berat 4,79 ± 0,85 gram. Pemeliharaan selama 40 hari dalam wadah berupa waring ukuran 1x1x0.5 meter. Pakan diberikan sebesar 5% dari bobot biomasa, dengan tiga kali pemberian yaitu pada pukul 07.30, 13.00 dan 15.30 WIB. Parameter penelitian terdiri dari data (PBM) Pertumbuhan Bobot Mutlak, (PPM) Pertumbuhan Panjang Mutlak, Rasio Konversi Pakan (FCR), (RP) Retensi Protein, (RL) Retensi Lemak dan (TKH) Tingkat Kelangsungan Hidup serta parameter kualitas air sebagai pendukung. Hasil penelitian didapatkan data bahwa substitusi tepung kedelai terhadap tepung daun indigofera dalam formulasi pakan benih ikan patin siam mampu meningkatkan kinerja produksi ikan. Substitusi pada dosis (P3) 28% tepung kedelai dan 12% tepung daun indigofera menghasilkan nilai tertinggi terhadap kinerja produksi dan kelangsungan hidup ikan patin. Nilai kaualitas air masih berada dalam kisaran optimal untuk pertumbuhan ikan.   This study aims to evaluate the effect of substitution of soybean flour and indigofera leaf meal (Zollingeriana) in artificial feed on production performance and survival of Pangasius hypophthalmus. This study used a completely randomized design (CRD) with four treatments and three repetitions. The treatments tested were soy flour and indigofera leaf flour substitution, P0 = 40% soybean flour 0% indigofera leaf flour, P1 = 36% soybean flour 4% indigofera leaf flour, P2 = 32% soybean flour 8% indigofera leaf flour, P3 = 28% soybean flour 12% indigofera leaf flour. The test fish used were Siamese catfish fry measuring an average weight of 4.79 ± 0.85 grams which were reared in a waring (1x1x0.5 meter) for 40 days. Fish were fed 5% of their body weight three times a day at 08.00, 13.00 and 15.00 WIB. Parameters observed are absolute weight and length Growth, Food Conversion Ratio (FCR), Fat and Protein Retention, and Survival Rate as well as water quality parameters as a support. The results showed that the substitution of soy flour and indigofera leaf flour in the Siamese catfish seed fry formulation was able to increase production performance and survival rate of fish. Substitution at a dose (P3) of 28% soy flour and 12% indigofera leaf flour resulted in the highest value for production performance and survival of fish. Water quality parameters during rearing were still in optimal conditions for fish growth.