Plotka, E D <br/><br/>
Identification and excretion of estrogen in urine during the estrous cycle of the ewe.  [electronic resource] 

 -  Journal of animal science  Dec 1969 
 - 934-9 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0021-8812 
<br/><br/><label>Standard No.: </label>10.2527/jas1969.296934x  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Animals<br/>Chromatography, Gas<br/>Chromatography, Thin Layer<br/>Estradiol--urine<br/>Estrogens--urine<br/>Estrone--urine<br/>Estrus<br/>Female<br/>Pregnancy<br/>Sheep