Gehan Zakaria Mousafa <br/><br/>
Studies on some hygienic aspects related to low hatchability in broiler breeder eggs /  
 دراسات عن بعض الجوانب الصحية المتعلقة بانخفاض نسب الفقس فى بيض امهات بدارى التسمين 
Gehan Zakaria Mousafa ; Supervised Elsayed Mohamed Badawy , Osama Mohamed Zahran 
 - Cairo :   Gehan Zakaria Mousafa ,   1999 
 - 195Leaves :   charts ;   30cm 
<br/><br/>Thesis (Ph.D.) - Cairo University - Faculty Of Veterinary Medicine - Department Of Veterinary Hygiene and Management