Impact of Cypermethrin 25% EC and pH on Certain Haematological Parameters of Cyprinid Fish Puntius javanicus

Roy Tushar Kanti,Saha Samir Kumar

Published 2021 in International journal of zoological investigations

ABSTRACT

In present study an attempt has been made to investigate the combined impact of sub lethal toxicity of Cypermethrin 25% EC and pH on certain blood parameters of Puntius javanicus. Adult fish were exposed to sublethal concentration (0.36 µg/L) of cypermethrin 25% EC in different pH water i.e. pH 5, pH 6, pH 7, pH 8.5 and pH 9.5 for 15 days. Significant changes in red blood cell (RBCs) count, total white blood cells (WBCs), haemoglobin % (Hb%), haematocrit value, total serum protein and blood glucose level were observed in fish exposed to sub-lethal concentration of cypermethrin. Significant decrease in red blood cell (RBCs) count, haemoglobin % (Hb %), haematocrit value and total serum protein content were found in fish exposed to sub-lethal concentration of cypermethrin in pH 5, pH 6 and pH 9.5, compared to fish exposed to sub-lethal concentration of cypermethrin in pH 7. A significant increase in these parameters were documented in fish exposed to sub-lethal concentration of cypermethrin in pH 8.5, compared to fish exposed to sub-lethal concentration of cypermethrin in pH 7. On the other hand a significant increase of total white blood cells (WBCs) and blood glucose level were recorded in fish subjected to sub-lethal concentration of cypermethrin in pH 5, pH 6 and pH 9.5, compared to fish exposed to sub-lethal concentration of cypermethrin in pH 7. Values of these parameters were decreased significantly in fish exposed to sub-lethal concentration of cypermethrin in pH 8.5, compared to fish exposed to sub-lethal concentration of cypermethrin in pH 7. The values of all studied blood parameters in fish subjected to sub-lethal concentration of cypermethrin in pH 8.5 were almost found to retain the values of control group (pH 7, without toxicant).

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