Potential of Fermented Commercial Feed to Replace Silk Worms on Post larvae of Asian Redtail Catfish (Hemibagrus nemurus)

Abstract Asian redtail catfish ( Hemibagrus nemurus ) is an economically fish on Malay community. On its breeding requires silk worms as natural food that has the best for growth and survival in post larvae phase. other hand, availability of very dependent conditions. During rainy season, becomes rare, this a separate problem general breeders. Based this, aimed research was to determine how effect alternative feeds, form fermented commercial performance rate larvae. This study used completely randomized design with 3 treatments replications, namely rare silkworm feed (A), (B), non-fermented (C), size 11.00 ± 0.00 mm, stocking density 4 fish/L. The results from were found treatment A, which resulted absolute weight 0.77 g, length 23.33 0.36 but highest obtained B (81.33 4.51%), although not significantly different A. observation structure, structurally softer. behavior response, while feeding pattern showed (B) better than (C). proximate test, decreased protein, fat crude fiber content, ash content increased slightly.