GROWTH AND SURVIVAL OF TILAPIA (Oreochromis niloticus) USING A COMBINATION OF PELLETS AND LEMNA (Lemna perpusilla)

Abstract

This study aims to examine the growth and survival rate of tilapia fish fed a combination of pellets and Lemna perpusilla. The test animals used in this study were tilapia (Oreochromis niloticus) raised in concrete ponds using a complete randomized design (CRD) with treatments consisting of 100% L. perpusilla + 0% pellets, 25% L. perpusilla + 75% pellets, 50% L. perpusilla + 50% pellets, and 0% L. perpusilla + 100% pellets. The results showed that the highest absolute weight gain in fish fed mixed feed was observed in the 0% L. perpusilla + 100% pellet treatment, while the highest survival rate in this study was observed in the 0% L. perpusilla + 100% pellet treatment, which was 95%. The results of the analysis of variance for absolute weight growth between treatments showed a significant effect (P<0.05), while the survival rate showed no effect (p>0.05). In conclusion, feeding a combination of pellets and L. perpusilla had a significant effect on specific growth rate. The highest specific growth rate was observed with 25% L. perpusilla combined with 75% pellets, while the survival rate of tilapia fed a combination of pellets and L. perpusilla during the rearing period was not significantly affected. The highest survival rate was shown by feeding 50% L. perpusilla combined with 75% pellets and 25% L. perpusilla combined with 50% pellets.