Comparative Fluctuation in RNA Contents of Barytelphusa Guerini After Exposure to Zinc and Cadmium Sulphate Toxcity

The fresh water female crab, Barytelphusa guerini was selected for experimentation. It is abundantly available in the paddy fields of Nanded district. The animals were collected and brought to the laboratory to acclimatize them with laboratory conditions. Alterations due to the effect of metallic pollutant on the RNA content of leg muscle, gill, hepatopancreas, heart and blood of freshwater female crab Barytelphusa guerini, after exposure to sublethal concentration of zinc sulphate and cadmium sulphate for 24, 48, 72 and 96 hours were studied. The values of RNA content were expressed in terms of mg RNA/gm wet weight and mg RNA/100 ml of blood.