THE PHYSIOLOGICAL CHANGES AND GROWTH …



EFFECT OF EDTA ON REDUCTION OF CADMIUM TOXICITY ON GROWTH , SOME HAEMATOLOGICAL AND BIOCHEMICAL PROFILES

Of NILE TILAPIA (Oreochromis niloticus).

Adel M. E. Shalaby

Fish Physiology Department, Central Laboratory for Aquaculture Research, Abbassa, Abo- Hammad, Sharkia, Egypt.

ABSTRACT

The effect of the ion –exchanging (chelating) agent EDTA on cadmium (Cd) toxicity and the impact on fish growth, food utilization, haematological and biochemical changes in Nile tilapia (Oreochromius niloticus) were studied. The fish (35-40g )were exposed to 10 ppm Cd alone or with 0.1, 0.2 and 0.3 g EDTA/L for 15 and 45 days. Cd exposure significantly (P ................
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