Impact of insecticide (quinalphos) on the biochemical components of the fish labeo rohita

The biochemical components like protein, carbohydrate and lipid were estimated quantitatively in the tissues of liver, kidney, muscle and gill of control and insecticide treated fishes. The fishes were treated with the sublethal concentration of 6.6 ppm for 1, 2, 3, 10and 20 days. The protein, carbohydrate and lipid level of 20 days. The protein, carbohydrate and lipid level of liver, kidney, muscle and gill of the control fish was very high when compared with the treated ones. In treated fish the protein content of liver, kidney, muscle and gill were greatly reduced. Maximum reduction was observed at 20 days exposure. The carbohydrate and lipid content of the liver, kidney, muscle and gill are showed similar declining trend at different exposure periods. Maximum reduction was observed at 3 days and long term exposure periods.