An evaluation of stocking density on the intensive production of juvenile brown tiger shrimp (Penaeus esculentus).

摘要

Brown tiger shrimp (Penaeus esculentus) were intensively grown from PL17 to approximately 1.0 g in a tank system with artificial substrates (AquaMatReg.). Shrimp growth and survival performance were compared between shrimp stocked at a density of 5720 and 11 430 m-3. Mean shrimp weight was significantly higher (P0.05) after 56 d culture, when stocked at 5720 shrimp m-3 (1.46+or-0.11 g) compared to 11 430 shrimp m-3 (1.04+or-0.05 g). When harvested after 56 d, shrimp survival was 31.9+or-12.0% at a density of 5720 m-3, which equated to a mean biomass of 2.52+or-0.81 kg m-3. At a density of 11 430 m-3, shrimp survival was 21.2+or-2.7%, which equated to a mean biomass of 2.49+or-0.19 kg m-3. There was no significant difference (P0.05) in survival and biomass between the two stocking densities. Increasing the stocking density from 5720 to 11 430 shrimp m-3 did not significantly increase shrimp biomass production and resulted in greater production costs and greater risk of losing stock..