Studies on Biochemical and Enzymatic Changes in Freshwater Fish Xenentod on Cancila Infected With Internal Parasite Philometra Pellucida and Analysis of Heavy Metals in the Water

Abstract

            Parasites present in fishes have been reported to severely change the status of biochemical and antioxidants in them. Among nematode parasite, Philometra pellucida is commonly found in freshwater fish, Xenentodon cancila is causing a considerable damage to fish health. The aim of this study was to investigate the biochemical and enzymatic changes in muscle, gut, liver and gill tissues of Xenentodon cancila parasitized by Philometra pellucida. The present result showed that the biochemical parameters including carbohydrate, protein and lipid are decreased in infected fish. The enzymatic manifestation of the infected fishes showed marked increase in the content of protease, Superoxide Dismutase, glutathione, glutathione peroxidase and lipid peroxidation concentration in infected fish. The heavy metals like Barium, Boron, Copper, Manganese, Selenium, Silver, Zinc, Cadmium, Lead, Chromium, Molybdenum, Nickel and Arsenic were analysed and aluminium is identified in a trace amount.