Some Nutritional Values of Four Fresh Water Fish from Different Localities in White Nile
Fish is considered as an excellent affordable source of nutrients. The objective of the present study was to determine the proximate composition of four fresh water fish namely: Oreochromis niloticus (Nile tilapia), Hydrocynus forskali (Kass), Labeo niloticus (Dabs) and Chrysichithys auratus (Abu Reyala) from three sites along the White Nile. Al-dubaseen area Site (2) was considered the site with highest contamination where dumping of effluents, Al-kalakla area Site (1) was 5km south before the dumping area and considered area with least pollution. Al-shagara area Site (3) 5 km north after the dumping area and considered an area with medium pollution. Moisture content, crude protein, crude oil, ash and carbohydrates in flesh of the four species were evaluated by proximate analysis according to . Three vitamins were also determined in the flesh of the four species from the three sites using liquid chromatographic method. Fish collected from the effluent dumping site (site 2) showed lowest percentages in crude protein, crude oil, ash and carbohydrates which were although not significantly different in O. niloticus. L. niloticus and H. forskali but showed significant lowest percentages in C. auratus. In general Vitamin C and E were lowest in fish collected from site (2) when compared to sites (1) and (3). Results revealed no significant alterations in Vitamin A levels in fish species except for H, forskali that gave a significantly low levels of Vitamin A from Site 2. The results suggest that effluents dumped in the White Nile caused pollution that contributes to elevation of the chemical composition of fish.
Oreochromis Niloticus, Hydrocynus Forskali, Labeo Niloticus, Chrysichithys Auratus, Proximate Analysis, White Nile, Sudan
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