Protective effect of molasses diet on liver carpin index of Cyprinus carpio in exposure to copper and titanium oxide nanoparticles

The present study was performed to evaluate the protective effect of molasses pretreatment on the liver index of common carp (Cyprinus carpio) in exposure to copper oxide and titanium nanoparticles. Therefore, 250 juveniles of common carp for 42 days in four categories, rations without molasses (treatment 1), diets containing 0.5% molasses (treatment 2), diets containing 1% molasses (treatment 3) and diets Containing 2% molasses (treatment 4) were divided. Then, 50% of the lethal concentrations of copper and titanium oxide nanoparticles were added to each group for fourteen days. Histological studies of fish exposed to molasses and oxidomes and titanium nanoparticles showed structural abnormalities in liver tissue such as hemorrhage, fattening, and macrophage accumulation. So that these changes were very different compared to the tissues of the control group. The final conclusion of the present study showed that nano-titanium and nano-copper treatment resulted in tissue damage in carp liver; Although pathological complication was also observed in the combined treatments of the mentioned nanoparticles and molasses, but the severity of injuries decreased with increasing molasses concentration.