Evaluation of Acute Toxicity of Malathion on Fingerligs of Channa punctatus

Abstract

Malathion, an organophosphate insecticide is acetycholinesterase inhibitor that has potential to contaminate the ground water. The 96 hours LC50 value of malathion was determined in four-month-old Fingerlingss Channa punctatus with a body weight 1.52±0.40g and body length 6.29 ± 0.80 at 32±1°c temperature. LC50 value was determined using finney method. The LC 50 value was 2 ppm for 96 hours.