PENGARUH PEMBERIAN GRINDAL WORM (Enchytraeus buchholzi) DAN PAKAN KOMERSIL F999 TERHADAP PERTUMBUHAN BENIH IKAN LELE SANGKURIANG (Clarias gariepinus)
Penelitian ini dilatarbelakangi oleh penting nya manajemen pakan dalam budidaya ikan lele sangkuriang (Clarias gariepinus) untuk meningkatkan efesiensi produksi, terutama karena biaya pakan komersil terus meningkat. Grindal worm (Enchytraeus bucholzi) merupakan pakan alami bernutrisi tinggi yang berpotensi menjadi alternatif atau pelengkap pakan komersil. Penelitian ini bertujuan menganalisis pengaruh pemberian Grindal worm, pakan komersil dan kombinasi terhadap pertumbuhan, kelangsungan hidup, rasio konversi pakan, serta kualitas air benih lele sangkuriang. Metode yang digunakan adalah eksperimen sungguhan dengan Rancangan Acak Lengkap (RAL), terdiri atas tiga perlakuan dan tujuh ulangan, yaitu A (100% pakan komersil), B (100% Grindal worm) dan yang C (50% pakan komersil + 50% Grindal worm). Pemeliharaan dilakukan selama 30 hari dengan parameter pertumbuhan berat mutlak, panjang mutlak, Survival Rate (SR), Feed Conversion Ratio (FCR), suhu, pH, oksigen terlarut dan amonia. Data analisis menggunakan ANOVA pada taraf kepercayaan 95%. Hasil menunjukkan kualitas air berada pada kisaran optimal, yaitu suhu 25-28°C, pH 5,10-5,93, DO 4,3-6,9 mg/L dan amonia 0,253-1,256 mg/L. Tidak terdapat perbedaan nyata (P>0,05) pada pertumbuhan dan SR, tetapi FCR berbeda nyata (P0,05). Perlakuan C mengahasilkan FCR terendah yaitu, 0,96 sehingga paling efesien dalam pemanfaatan pakan. Kesimpulannya, kombinasi kedua pakan dapat meningkatkan efesiensi tanpa menurunkan pertumbuhan dan kelangsungan hidup benih dalam lingkungan terkontrol budidaya yang baik. Kata Kunci: Clarias gariepinus, Enchytraeus buchholzi, Pertumbuhan, FCR ABSTRACT The importance of feed management in the production efficiency of Sangkuriang catfish (Clarias gariepinus) was the rationale of this study, particularly in consideration of the increasing cost of commercial feed. Enchytraeus bucholzi, or Grindal worms, constitute a highly nutritious organic feed source which could potentially be utilized as an alternative as well as through combination with manufactured feed. The aim of this study was to determine whether administering commercil feed, Grindal worms, and their combination affects Sangkuriang catfish fry growth, survival rate, feed conversion ratio, and water quality. Three treatments and seven replicates were performed during this simulated experiment with a Completely Randomized Design (CRD): A (100% commercil feed), B (100% Grindal worms), and C (50% commercil feed + 50% Grindal worms). Absolute weight, absolute length, Survival Rate (SR), Feed Conversion Ratio (FCR), temperature, pH, dissolved oxygen, and ammonia were among the growth metrics used during the 30-day cultivation period. Data analysis was performed using ANOVA at a 95% confidence level. Results showed that water quality was within the optimal range, namely temperature 25–28°C, pH 5.10–5.93, DO 4.3–6.9 mg/L, and ammonia 0.253–1.256 mg/L. There were no significant differences (P > 0.05) in growth and SR, but FCR differed significantly (P 0.05). Treatment C produced the lowest FCR, at 0.96, making it the most efficient in feed utilization. In conclusion, the combination of the two feeds can improve efficiency without reducing growth and survival of the fry in a well-controlled aquaculture environment. Keywords: Clarias gariepinus, Enchytraeus buchholzi, Growth, FCR