Effects of Supplementation of pineapple peel extract in diet on growth and survival rate of Nile tilapia (Oreochromis niloticus) กิตติศักดิ์ ผุยชา อนุธิดา ผายพันธ์ เสกสรร ชินวัง และ กิตติ วิรุณพันธุ์

Abstract

The result of pineapple peel extract at 0, 4, 8, and 12 % in feed pellet (32 % crude protein) on growth and survival rate of Nile tilapia (Oreochromis niloticus) was studied.  At beginning the fish average weight was 3.98 ± 0.02 gram and the fish average length was 5.68 ± 0.10 centimeter. The feeding period was 8 weeks. It is found that length increasing, weight gain, average daily gain, specific growth rate, and feed conversion ratio were significantly different (P>0.05). Nile tilapia fed on pineapple peel extract at 12 % in feed pellet showed best results. Therefore, the study showed that pineapple peel extract can be supplemented in Nile tilapia pellet for up to 12 % without any negative effect on growth. The study also showed that the feed also increase fish surviving rate.