Impact of piscicidal plants on protein profile of fish

Cestrum nocturnum (CN) and Cestrum diurnum (CD) extracts are well-reported piscicides. Before its use infisheries for removal of predatory and trash fishes, it’s of most importance to study toxicological impacts on fishes. Both theseplant extracts contain saponin as a poisonous constituent. Clarias batrachus was exposed to CN extract (LC10= 1.9 mg/lit,LC50 = 3.5 mg/lit) and CD extract (LC10= 2.6mg/lit, LC50 = 4.4 mg/lit) for 48 hrs duration. Protein changes in muscles, liverand intestine were analyzed after exposure period. Toxic effect of these two piscicides caused a remarkable increase inprotein at sub lethal concentration. The chronic application of lower dose of saponin containing extract may have initiatedprotein synthesis.