Biochemical Responses of Fingerling Cyprinus carpio (Linnaeus, 1758) Exposed to Sub-lethal Concentrations of Dichlorvos
B. Laxmi, K. Madhavi, K. Dhanapal, Adnan Amin, O. Sudhakar, N. Jesintha
Abstract
The present investigation was taken up under controlled ambient laboratory conditions (conditioning/lethal toxicity/sublethal toxicity studies: pH: 7.1±0.2; salinity: 1 ppt; temperature: 32±2ËšC; alkalinity: 220±18 ppm; hardness: 380±26 ppm; dissolved oxygen: 8.0±0.6 ppm) to examine the pesticide induced changes in selected biochemical parameters of fingerling common carp exposed to sub-lethal concentrations (1/10th& 1/5th LC50) of dichlorvos. The 96 hour LC50 value was found to be 21.11 ppm. The sublethal toxicity impact (either negative or positive) of ‘dichlorvos’ on biochemical composition of fingerling common carp was in the order of crude fat > ash > moisture > crude protein.