Saturday , 14 December 2024

Impact of Pesticide “Alderin” on the Haematology of the Freshwater Fish, “Cirrhinus Mrigala”

M. Mohan kumar* and S. Binu kumari    
PG and Research Department of Zoology, Kongunadu Arts and Science College, Coimbatore-641029, Tamil Nadu, India

A B S T R A C T
The pesticides are one of the most potentially harmful chemicals introduced into the environment. Through they have contributed considerable to human welfare their adverse effects of non target organisms are significant. Haematological parameters are being used as indicators in the measurement of health conditions and toxicological symptoms of organisms. The acute and sublethal toxicity of the pesticide “Alderin” on the fingerlings of Cirrhinus mrigala was evaluated to determine its effect on the haematological values. The fish was exposed to varying levels of the toxicant concentrations using static bioassay to determine the median lethal concentration. The LC50 value is 0.74 ppm. The fish was exposed to different hours (24, 48, 72 and 96hrs) in sublethal concentration 0.074 ppm and parameters like RBC, WBC, Hb, MCV, MCH, MCHC, PCV has been analyzed. All haematological parameters except WBC were found to be decreased from control and the WBC was increased in all exposure periods. The values were statistically analyzed and most values were found to be significant at 5% level.
Keywords: Haematological, Pesticide, toxicity, sublethal, Cirrhinus mrigala.

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