Methyl Parathion Induced Haematology Profile Alteration of Climbing Perch, Anabas testudineus (Bloch.)

Water pollution from agricultural wastes sources such as pesticides is now considered to be a major problem in worldwide. The present study includes the alterations induced by chronic (21 days) exposure of the fish Anabas testudineus to a sublethal concentration (0.047 ppm conc.) of methyl parathion on the haematology profile. The induced group shows significant alteration in the haematological parameters such as decreasing value in Hb, RBC, WBC while increasing value observed in DLC, Neutrophil, Monocytes and Eosinophil. The methyl parathion induced fishes may have various haematological diseases: Erythropoesis, anaemia, Leucocytopaemia, Neutropaemia, Lymphopaemia, Eosinophilia and Erythropaemia. Therefore, for the optimum growth performance of fish cultivation in contaminated water with pesticide, methyl parathion concentration should not be more than 0.047 ppm. The information will be major role on different levels of responses of organisms with respect to pollutant stress is a necessary pre-requisite for the proper management of pesticides application in agriculture.