Effect of cadmium, copper and lead contamination on growth performance and chemical composition of Nile tilapia (Oreochromis niloticus) [electronic resource].

Includes reference.

Bolti (Tilapia niloticus) fish were grown in polluted water with one of the heavy metals namely cadmium, copper or lead. The concentrations of the tested metals in fresh water environment were 0.1 and 0.2 mg/l Cd, 0.25 and 0.50 mg/l Cu and 0.1 and 0.2 mg/l pb. An experiment of 56 days was performed to study the effect of the tested sublethal levels of each of cadmium, copper and lead on growth performance. body composition. residual concentration and muscular and abdominal area of fish body. A set of 140 fish with 10,g average initial body weight was divided into 14 similar groups in glass aquaria containing 75 liter of water in each.

Summary in Arabic.

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