Utilization of Fermented Coconut Epidermis Using Oncom Mushroom (Neurospora sitophila) on the Growth Performance of Red Tilapia (Oreochromis niloticus) Fingerlings

This study aims to analyze the effect of feed based on coconut husk waste fermented Neurospora sitophila on the growth of red tilapia, and to determine the optimal dose of coconut husk waste. This research was carried out in May – June 2021, at the Aquaculture Laboratory Building IV, Faculty of Fisheries and Marine Sciences, Padjadjaran University Bandung, West Java45363 Indonesia. This study used a completely randomized design with four treatments and four replications. Treatment A (Control), Treatment B (feed containing 25% coconut husk filler), treatment C (feed containing 50% coconut husk filler), and treatment D (feed containing 75% coconut husk filler). Parameters observed were Specific Growth Rate, Feed Conversion Ratio, Survival Rate, Feed characteristics and water quality (Temperature, pH, DO, Ammonia). The results showed that treatment C(feed containing 50% of coconut husk filler) gave significantly different results in the parameters of SGR and FCR, but not significantly different in survival rates. Water quality parameter values ​​are in good condition for the growth and survival of red tilapia. The highest SGR value in treatment C was 1.26%. The lowest FCR value was in treatment C of 1.90. The most optimal dose of fermented coconut husk for the growth of red tilapia is treatment C.