Leitman, N R <br/><br/>
Comparison of controlled internal drug release insert-based protocols to synchronize estrus in prepubertal and estrous-cycling beef heifers.  [electronic resource] 

 -  Journal of animal science  Dec 2009 
 - 3976-82 p.  digital 
<br/><br/> Publication Type: Comparative Study; Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S. 
<br/><br/><label>ISSN: </label>1525-3163 
<br/><br/><label>Standard No.: </label>10.2527/jas.2009-2250  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Animal Husbandry<br/>Animals<br/>Cattle--physiology<br/>Estrus Synchronization--methods<br/>Female<br/>Gonadotropin-Releasing Hormone--pharmacology<br/>Insemination, Artificial--veterinary<br/>Pregnancy<br/>Pregnancy Rate<br/>Progesterone--pharmacology