EFFECTS OF CYPERMETHRIN ON SOME HAEMATOLOGICAL PARAMETERS IN HETEROPNEUSTES FOSSILIS (BLOCH)

Abstract

The present experimental project was designed to assess the impacts of Cypermethrin, a 4th generation insecticide on haematological parameters in Heteropneustes fossilis viz. total erythrocyte count (TEC) and hemoglobin content (Hb). Fishes were subjected to 0.1 μg/L (1/6th of 96h. LC50) of Cypermethrin 10% emulsified concentration for 24h, 48h, 72h and 96h to study the toxic effects of the chemical pesticide. The 96h LC50 value of cypermethrin for the test fish was found to be 0.67μg/L. There was a significant decrease (p<0.05) in total erythrocyte count (TEC) and haemoglobin content (Hb) of treated fishes compared with the control group.