| Autor: |
Chikate, Surabhi D., Ghode, Gajanan S., Tibile, Raju M., Wasave, Sangita S., Pawar, Ravindra A., Tijare, Sonam, Patil, Ravindragouda, Pawase, Anil S. |
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| Zdroj: |
Biochemical & Cellular Archives; Apr2024, Vol. 24 Issue 1, p1243-1249, 7p |
| Abstrakt: |
Invasion of brackish water shrimp ponds with creeper shell Cerithidea cingulata is a major menace. Shells compete for space and food and may reduce shrimp production by more than 90%. Synthetic chemical molluscicides are currently used for control. However, development of eco-friendly herbal molluscicide is the need of time. In this experiment, suitability of Jatropha curcas leaf ethanol extract (EE) for controlling creeper shells was studied and its effect on Litopenaeus vannamei post larvae (PL) was judged. The shells and the PL were exposed to varying concentrations of ethanol extracts at four different pH levels (7, 7.5, 8, and 8.5). A completely randomized design (CRD) with five treatments and three replications was followed for each pH. The 96-hrs LC50 values for creeper shells were found to be 1.62, 1.87, 2.16 and 2.32 mg mL-1 at pH 7.0, 7.5, 8.0, and 8.5 respectively. 48-hrs LC50 values for the PL were observed to be 0.30, 0.35, 0.57 and 0.94 mg mL-1 at pH 7.0, 7.5, 8.0, and 8.5 respectively. Control assays with DMSO and ethanol showed no effects on the snails. Residual effect of jatropha leaf extract lasted for six days. Study concludes that high doses of Jatropha leaf ethanol extract are required for controlling shell population and also it has proved to be more toxic to PL. Hence, further research to find out susceptible stages of creeper shells in shrimp ponds is required. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
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