Abstract

IMPACT OF PESTICIDE ON HAEMATOLOGICAL PARAMETERS OF CYPRINUS CARPIO

Vaiyanan V., *G. Sridharan, S. Raveendran and K. Chairman

ABSTRACT

The impact of acute and sublethal toxicity of a synthetic Monocrotophos pesticide* on some haematological and„ biochemical parameters of a freshwater fish Cyprinus carpio was estimated. Aquatic environment by various pollutants like pesticides, heavy metals, detergents and discharge of effluents from various industries induce changes in the behavioural, physiological and biochemical aspects of inhabitants, particularly fishes. These pollutants cause serious effects on growth, physiology and survival rate of aquatic organism especially fish. The present work is one such attempt to investigate the effect of heavy metal pesticide on haematological parameter of C. carpio. Effects of sublethal concentrations of Monocrotophos (4.5 ppm, 6.7 ppm and 13.5 ppm) on haematological parameters were studied in fresh water C. carpio. Monocrotophos toxicity resulted in a significant decrease in all the sub lethal concentrations and maximum at 12.5 ppm (RBC (-42), Hemoglobin content (-71), ESR(-68) and PCV % (-59) and a significant increase in WBC count (+52). To determine the normale values of haematological parameters on carp, at intensive rearing, it is necessary the continuation of studies that could offer standards for physiological condition and for pathological inquest.

Keywords: Monocrotophos pesticides, Sub lethal toxicity, Hematology, C.carpio.