Swiefy, Swiefy Abd El Rahim. <br/><br/>
Determination of pubertal age in friesian cattle under Egyptian conditions new approach  [microform] / 
Swiefy Abd El Rahim Swiefy. 
 -  1988. 
 - 113, 6 leaves :  ill. ;  30 cm. 
<br/><br/>Thesis (M.S.)-- Cairo University,1988. 
<br/><br/>Includes bibliographical references (leaves 81-102) 
<br/><br/><br/>Microfiche. <br/>ASUNET, <br/>Ain Shams University, <br/>2 microfiches : negative. 
<br/><br/><br/>Summary in Arabic. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Friesian cattle--Breeding.<br/>Sexual behavior in animals.<br/>Puberty.<br/>Cattle--Growth.