Effect of Indian almond, Terminalia catappa leaves water extract on the survival rate and growth performance of black tiger shrimp, Penaeus monodon post larvae.

This study was performed to determine the effectiveness of different concentration of Indian almond, Terminalia catappa leaves water extract in post-larvae (PL) rearing of black tiger shrimp, Penaeus monodon. The survival rate and growth performance was done by releasing the PL 3 into the experimental tank until reach PL 20 for 18 days. The survival rate of P. monodon PL was significantly higher (p < 0.05) in concentration of 3.0 mg mL than those PL in controls and other treatments including 1.0 mg mL, 2.0 mg mL and 4.0 mg mL, but the growth rate did not significantly differ among the treatments except for the control. The toxicity test result showed that the LC50 of the P. monodon PL was 4.7 mg mL while expose for 96 hours to T. catappa leaves extraction. In conclusion, 3.0 mg mL concentration of T. catappa leave extraction give positive effect on survival rate and growth performance of P. monodon PL, but higher concentration become toxic and can cause high mortality.