Toxicological study on Clarias batrachus caused by Croton and Mahua extract

Abstract

Mahua oil cake and croton are the major piscicide used by the fishermen in the Garhwal region. Croton contains two toxic proteins, those are essentially blood, poisons as well as mahua oil cake extract possess saponins, are poisonous towards the lower forms of life and are used for fish killing. Clarias batrachus was exposed to croton and mahua with concentration lethal 200 ppm and sub lethal 100 ppm and 4 ppm lethal and 2 ppm sublethal of croton 14 days duration. Protein changes in muscles, liver and intestine were analyzed after exposure period. Toxic effect of these two piscicides caused a remarkable protein fluctuation at lethal concentration as well as sub-lethal level of the toxicity.