Shatta, Abd El-Sattar Abd El-Azize Mohamed. <br/><br/>
Studies of some environmental factors on some reproductive performance of friesian bulls  [microform] / 
Abd El-Sattar Abd El-Azize Mohamed Shatta. 
 -  1987. 
 - 131, 4 leaves :  ill. ;  30 cm. 
<br/><br/>Thesis (M.S.)-- Tanta University, 1987. 
<br/><br/>Includes bibliographical references (leaves 110-131) 
<br/><br/><br/>Microfiche. <br/>ASUNET, <br/>Ain Shams University, <br/>3 microfiches : negative. 
<br/><br/><br/>Summary in Arabic. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Friesian cattle--Feeding and feeds.<br/>Bulls--Reproduction.<br/>Cattle--Productivity.