PHYSIOLOGICAL AND HEMATOLOGICAL. STUDIES ON MAFIA SPECIES INFECTED WITH EXTERNAL PROTOZOA IN ISMAILIA REGION

Abstract

Fish represents an important source of food protein especially for the countries lying on the shore of the sea, like our country. Nowadays in Egypt, more attention is being focused to develop the natural fish resources as well as the fish cultures to fulfill the demand of the animal protein for the over population. Tilapia sp, is one of the most popular fish especially in tropical and subtropical countries. It is naturally found in brackish and fresh water bodies as well as cultured in marine water, In Egypt, fish of genus Tilapia constitute 70% of the total catch and because of their abundance their prices are handy everywhere. Moreover, several trials were made to culture this fish in a