Abstract
Pesticides have an innate capacity to cause damage to biological system. Considering above fact the present study deals with the effect of the insecticide malathion on histological and biochemical study on cardiac muscle tissue in Channa punctatus. In present study effect of sub lethal concentration (0.8 ppm) of malathion on protein, lipid and glycogen content and histopathological changes in heart tissue of fresh water fish Channa punctatus during 96 hours was studied. Structural variations like congestion, atrophy were observed in cardiac muscle of Channa puncctatus during 96 hours sub lethal treatment of malathion. Total protein, lipid and glycogen showed decrement in cardiac muscle of Channa punctatus Keywords: Malathion, sub lethal, cardiac muscle, Channa punctatus.
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