الفهرس 
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Abstract
This study was conducted to evaluate the potential of Argyrosomus regius in saltwater ponds without supplementary feeding (trash fish) the first study in Eldebba area in Port Said governorate .The results of the first study of fish reached an average final weight of 1500 g fish ,the second study in the Suez Canal Authority project in Suez Canal Company,in this study of fish reached an average final weight of 2500 g / fish ,The result indicates that the cost of feed represents the largest proportion (70%) of the total cost of fish production.