Shahein, El Sayed Hamed Aly. <br/><br/>
Factors affecting hatchability and their relation to embryonic development in local chicken strains  [computer file]/ 
 دراسة العوامل المؤثرة على التفريخ وعلاقتها بالتطور الجنينى فى سلالات الدواجن المحلية. 
El Sayed Hamed Aly Shahein. 
 -  2002. 
 - Computer laser optical disks;  4 3/4 in. 
<br/><br/>Thesis (Ph.D.)--Tanta University,2002. 
<br/><br/>Includes bibliographical references (leaves [134]-164) 
<br/><br/>
<br/><br/><br/>System requirments:Acrobat. 
<br/><br/><br/>Summary in Arabic. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Eggs--Hatchability.<br/>Chickens--Fertility.<br/>Chickens--Feeding and feeds.<br/>Eggs--Production.