The Effect of Lead and its Interaction With Supplementation of Selenium and Vitamin E on the Growth Performance, Biochemical and Physiological Characteristics, Histopathology and Cytopathology of Oreochromis niloticus .

Abstract

In the present study 480 specimens of Oreochromis niloticus were used to determine the adverse effects of different sublethal concentrations of lead (2.5, 5 and 10 ppm) on behavioral changes, mortality, growth performance (body weight gain, condition factor and hepatosomatic index), blood constituents (hemoglobin, glucose, total protein, albumen, globulin, lipids, trieglycerides, ALT and AST enzymes) and histopathological characteristics of the liver. The validity of selenium (0.5 and 1.0 mg) and vitamin E for inhibition of such effects was testified.