Scaling Up of Stocking Density of Tiger Shrimp (Penaeus monodon) under Improved Farming System in Khulna Region of Bangladesh

Aims: Scaling up of stocking density of black tiger shrimp (Penaeus monodon) under improved shrimp farming system in the Khulna region of Bangladesh. Study Design: Completely randomized design (CRD) with three treatments each with three replicates. Place and Duration of Study: In the farm station of Gazi fish culture ltd. at Koilashgong, Khulna, Bangladesh between March to June 2011. Methodology: Nine ponds were selected and all ponds were prepared according to the general pond preparation system. Polymerase chain reaction (PCR) tested post larvae (PL15) were stocked at three different stocking densities i.e. 8 pcs/m2 (T1), 15 pcs/m2 (T2) and 22 pcs/m2 (T3). Commercial shrimp feed were supplied to all the treatments. Feed were adjusted according to the body weight gain of shrimp. Probiotics were applied in all the treatments to prevent diseases and maintain water quality parameters. Monthly water samples were collected for analysis and growth parameters were measured. Results: Results showed that all the water quality parameters were within the optimum range. Highest survival was found in T2 (82±4) and lowest was recorded in T3 (68±2) (P0.05). Conclusion: The research showed that stocking density of tiger shrimp 15 pcs/m2 is the optimum density for improved shrimp farming system in Khulna region of Bangladesh