Essmat, Ahmed Mohamed. <br/><br/>
Studies on common bacterial pathogens causing mortality and low productivity of Oreochromis niloticus  [computer file]/ 
 دراسات على البكتريا الممرضة الشائعة والمسببة لنفوق ونقص انتاجية البلطى النيلى. 
Ahmed Mohamed Essmat. 
 -  2009. 
 - Computer  laser  optical disk;   4 3/4 in. 
<br/><br/>Thesis (M.S.) -- Zagazig University, 2009. 
<br/><br/>Includes bibliographical references (leaves138-175) . 
<br/><br/><br/>Systems requirements: Adobe Reader. 
<br/><br/><br/>Summary in Arabic. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Nile tilapia--Mortality.<br/>Nile tilapia--Pathogens.<br/>Fishes--Diseases.<br/>animal pathogenic bacteria