Effects of Supplementation of Lime peel (Citrus aurantifolia (christm)) crude extract in the diet on growth and survival rate of Nile tilapia (Oreochromis niloticus) กิตติศักดิ์ ผุยชา ธรรมรักษ์ ละอองนวล สมพร แซ่จ้อง วรรษชน สีหบุตร และ เสกสรร ชินวัง
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Abstract
This studied effects of supplementation of lime peel (Citrus aurantifolia (christm)) crude extract in feed pellet (32 % crude protein) at 0, 4, 8, and 12 % on growth and survival rate of Nile tilapia (Oreochromis niloticus). The experiment began with 3.83 ± 0.02 grams/fish and 5.82 ± 0.06 centimeter/fish. The raising period was 4 weeks. It was found that the average daily length, weight gain, average daily gain, specific growth rate, and feed conversion ratio were not significantly different (P>0.05). However, the survival rate was significantly different (P<0.05). Tilapia received lime peel extract at 8 % and 12 % had the best of survival rate. This study shows that lime peel extract can be used to supplement feed pellet at 8% without affecting the growth and benefit survival rate of the fish.