PEFORMA PERTUMBUHAN IKAN KAKAP PUTIH (Lates calcarifer) PADA FASE PEMBESARAN YANG DIBERI PAKAN DENGAN PENAMBAHAN LISIN BERBEDA
This study aims to determine the best dose of the amino acid lysine in formulated feed for the growth of white snapper (Lates calcarifer) in the enlargement phase. The research design used three treatments and three replications with a completely randomized design method (CRD), namely control feed formulations with the addition of 0% lysine, P1 formulated feed with the addition of 0.2% lysine, and P2 feed formulations with 0.4% lysine. The test fish used was white snapper with an average weight of 90 grams. Fish reared in fiber tub volume of 2 m3 with the stocking 6 animals/m3. The results showed that feeding P2 formulation had a significant effect on growth in absolute weight, absolute length, daily growth rate, FCR, protein retention but had no significant effect on the survival rate and amino acid lysine retention. P2 feed (formulated feed with 0.4% lysine) can be used to support the growth of white snapper.