Health Aspects of Fish Cultured in Reused Wastewater with Special Reference to Parasitic Infestation

THE PRESENT study aims to evaluate the application of recycled A treated wastewater (tww) on fish culturing with special reference to productivity and health aspects. Samples of treated wastewater were - monthly obtained, from Helwan wastewater treatment plant, Cairo, Egypt. The collected water samples were subjected to be used in laboratory fish culture. Growth and productivity of cultured fingerlings Oreochromis niloticus, reared in tww compared with that reared in dechlorinated tap water were recorded. Statistical analysis revealed no significant monthly changes in body weight, length and width between fingerlings cultured in tap water and tww. Parasitological examination of fingerlings reared in tww revealed that only the skin and gills were affected by protozoan infection. At the same time fingerlings cultured in tap water were found free from parasites