title: Direct estimation of oestrone sulphate in sow serum for a rapid pregnancy diagnosis test.
abstract: An antiserum raised against oestrone-3-glucuronide-BSA was used for the direct radioimmunoassay of oestrone sulphate in pig serum. The method has a minimum sensitivity of 0.2 ng/ml and is potentially an accurate pregnancy test in pigs. Serum oestrone sulphate concentrations were less than or equal to 0.5 ng/ml in non-pregnant cyclic sows and greater than 0.5 ng/ml in pregnant sows bled 26-29 days after service.
mesh_terms: D000818:Animals; D004970:Estrone / Q000097:blood*; D005260:Female; D011247:Pregnancy; D011258:Pregnancy Tests / Q000379:methods / Q000662:veterinary*; D013552:Swine / Q000097:blood*
chemical_list: D004970:Estrone