GROW OUT OF SCALLOPED SPINY LOBSTER Panulirus homarus IN CONCRETE TANK WITH DIFFERENT DRY PELLET AS FEED

Scalloped spiny lobster (Panulirus homarus) is an export commodity and high economic value in Asian-Pacific markets, but the wild population was already over fishing. The purpose of this study was to determine the best dry pellet as feed for scalloped spiny lobsters grow out in concrete tank.

The study was conducted using 9 concrete tank 2x1x1 m; with three treatment and 3 replicates. Three different dry pellet were used as treatments, i.e.: pellet commercial for grouper (A), pellet commercial for shrimp (B), and dry pellet formula Gondol Institute of Mariculture  Research and Development (IMRAD) (C). The stocking density of spiny lobster (total length 13.1cm and body weight 78 g) was reared at 25 ind./cage. A complete random design was used as an experiment design. Data was analyzed using ANOVA and descriptive statistics. Feeding times were twice a day at 08.00 and 15.00 at local time; wit dose 10% of biomass for fresh feed and 3% for dry pellet. The samplings were conducted every month to measure of survival rate (SR), total length (TL) and body weight (BW). On the end of the experiment also take  a sample of blood for haemocyte counting. The result of experiment during 5 month rearing show that the best survival rate (94.67 %) was on treatment C, followed by treatment A (84.25%) and treatment B (82.67%). The highest final body weight on C (204.1 g), followed by A (168.6 g) and B (144.1 g). The number of haemocyte was almost the same between treatments with haemocyte number about 240-290 x 10⁴ sel/ mL. From these results it can be concluded that dry pellet formula IMRAD Gondol is more feasible than commercial pellet for grouper and commercial pellet for shrimp as feed for rearing of scallop spiny lobster grow out in concrete tank.