Toxic effect of chromium on leucocytes of Labeo rohita after administration of human B erythrocytes as antigen

Abstract

The toxic effect of chromium on leucocytes of Labeo rohita after primary and primary boosted antigen administration was measured. The antigen was used in the form of human B erythrocytes. In the present studies the fish were exposed to sub lethal concentration of 12 mg/l. ot chromium. The sampling was done after 2, 4 and 6 weeks of primary and primary boosted antigen exposure. As a result there was found significant increase in TLC. In case of DLC there was increase in monocytes, neutrophils, basophils and eosinophils while a significant decrease in lymphocytes was observed as compared to untreated groups.