Received: 24-09-2018
Accepted: 07-11-2018
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Survival and Growth Ratesof White-Leg Shrimp Litopenaeus Vannamei(Boone, 1931) Reared in Freshwater and Saline Brackishwater
Keywords
White-leg shrimp, Litopenaeus vannamei, freshwater, survival, growth
Abstract
This study compared the growth and survivalratesofwhite-leg shrimp (L. vannamei) which were reared in freshwater at 0 ppt and in saline brackishwater at 30 ppt. PL34 shrimps were reared at the density of 1 individiual/L (200shrimp/m2) for 21 days. Shrimps of each treatment were reared in three 40 L tanks. Results showed that there was no significant difference in survival and growthratesofthe white-leg shrimpshrimpbetween the two treatments during the whole culture period. The survival rates of shrimp reared at 0 ppt and 30 ppt were 62.5 ± 10.9% and 69.17 ± 7.64%, respectively. The weight gain of shrimp reached113.33± 15.28% for shrimp at 0 ppt and 106,67± 11,55% for those at 30 ppt. The specific growth rate of shrimp at 0 ppt and 30 ppt was 3.78 ± 0.36% and 3.63 ± 0.28%, respectively.In conclusion, white-leg shrimp could be reared in freshwater 0 ppt.
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