Document Type : Original Article
Authors
1
Nutrition Institute, Cairo, Egypt
2
Animal Health Research Institute, Agricultural Research Center, Ministry of Agriculture, Dokki, Giza, Egypt
Abstract
Five Nile fishes namely Oreochromis niloticus, Saris based Synodontis (Schell or niloticus), Clans Were and Mugil cephalus were collected from fish resources in Giza Govemorate. Samples from each were weighed and muscles were digested and analyzed for lead, cadmium, copper and zinc. The levels of Pb residues were 0.02, 0.03, 0.02, 0.06 and 0.14 ppm in Oreochromis niloticus, a bayed, Synodontis sp., Cl. !azMa and Mugil cephalus, respectively. The levels of Cd residues were 0.10, 0.13, 0.18, 0.24 and 0.29 ppm, in Oreochromis niloticus, EC bay-ad, Synodontis sp., Cl. lazera and Mugil cephalus, respectively. The levels of Cu residues were 0.04, 0.06, 0.03, 0.03 and 0.03 ppm, in OreochroMIS niloticus, a bayed, Synodontis sp., Cl. lazera and Mugil cephalus, respectively. The levels of Zn residues were 0.22, 0.42, 0.16, 0.27 and 0.75 ppm in Oreochromis niloticus, B bayed, Synodontis sp., Cl. lazera and Mugil cephalus, respectively. The results indicated an Increased bioaccumulation of heavy metals in aeries Were sp. and Mugil cephalus sp with lead and cadmium compared with other three species, in addition to zinc in Mugil sp. The results are discussed with other previous reports and their hazardous health effects.
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