The Fresh water lobster (cherax quadricarinatus) is a kind of shrimp that udeconomically has gained high price. The exported plantation shrimp has now udbecome increasing annually, thus, the supports from the other reseaches are to be udmuch expected on is sustainable growth. One of the most essential problems which udneeds to solve is the expensive price of its food which is a last, implicating the high udcost of its production. This research denotes to know the influence of biochemic udcomposition to the rapid grow of fresh water lobster on the stadium of post larva ud(PL) of 60 within three months. ud This research used the complete random planning dealing with 4 treatments udand each treatment would get 3 times cycle. The treatments cover, group K tested udanimal is treted with 100% mill food containing 30% of protein. Group A is given udwith food and biochemic food containing 13,34% of protein. Group B is the treated udwith mill food which is mixed with biochemic food containing 10,7 % of protein. udWhile group C is tested by treating them with mill food and biochemic food udcontaining 13,58%. After all the above mentioned would be set up within 3:1 udcomparation. The variable of this research is the length of the abdomen, udcephalothorax, total length, and the wet weight. The data analysis is using ANOVA udsystem on 95% power test completed by 13 version of PSS software. ud The result of the research shows that mentioned treatments give us the udsame influence toward the growth of fresh water lobster. The composition of udbiochemic food with the containing protein around 10,7%,13.34% and 13,38% has udgiven the same effect to the lobster growth on post larva 60 level. There is strong udcorrelation between cephalothorax and abdomen and between the total length and the udlobsters weight. ud ud Key word: Cherax quadricarinatus, Suplementary Food, Water Quality.
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