Pengaruh Penambahan Tepung Maggot Pada Pakan Komersil Dengan Feeding Rate Yang Berbeda Terhadap Pertumbuhan Dan Kelangsungan Hidup Ikan Nila (Oreochromis Niloticus)

Abstract

Nile tilapia is a type of freshwater fish that has a relatively high consumption value. This study aim to determine the effect of adding maggot (Hermetia illucens) meal to commercial feed at different feeding rates on the weight growth, length, feed conversion ratio (FCR), and survival rate (SR) of Nile tilapia (Oreochromis niloticus). The experiment was conducted for 30 days using a factorial randomized block design (RAK) with two factors: maggot meal levels (20%, 35%, and 50%) and feeding rates (3%, 4%, and 5%), resulting in nine treatment combinations with three replications. The results showed that treatment S3F3 (50% maggot, 5% feeding rate) produced the highest body weight gain at 25.22 g, while the best (lowest) FCR was obtained in treatment S3F1 at 2.6%. Survival rates ranged from 90% to 96.67% across treatments. Water quality parameters (temperature, pH, DO) remained within the optimal range throughout the study. The addition of maggot meal significantly enhanced fish growth, and the appropriate feeding rate optimized feed efficiency