Effect of CuSO4 on Toxicity of Nano Zinc Oxide (nZnO) in Carp Fish (Cyprinus carpio L.)

Abstract

Copper sulfate (CuSO4) was used to reduce the toxic effect of nano zinc oxide (nZnO) in carp (Cyprinus carpio L.). Copper sulfate (0.3 mg/L) was used for 1 hour in carp fish exposed to n ZnO in sub-lethal concentration (9 mg/L) for seven days. Also for comparison second group were only exposed to n ZnO in sub-lethal concentration (9 mg/L) for seven days. There were significant changes in concentration of Metallothionein (MT) and some biochemical parameters in serum of fish blood in all groups compared with non-treated groups. CuSO4 has play a major role in reducing the toxicity of n ZnO in some blood serum parameters.