title: A radioimmunoassay for 17 alpha 20 beta-dihydroxy-4-pregnen-3-one: its use in measuring changes in serum levels at ovulation in atlantic salmon (Salmo salar), coho salmon (Oncorhynchus kisutch), and rainbow trout (Salmo gairdneri).
mesh_terms: D015089:20-Hydroxysteroid Dehydrogenases / Q000378:metabolism; D000735:Androstenedione / Q000378:metabolism; D000818:Animals; D055598:Chemical Phenomena; D002621:Chemistry; D005260:Female; D006908:Hydroxyprogesterones / Q000097:blood* / Q000378:metabolism; D010060:Ovulation; D010504:Periodic Acid; D011863:Radioimmunoassay / Q000379:methods; D012474:Salmon / Q000097:blood*; D012487:Salmonidae / Q000097:blood*; D014337:Trout / Q000097:blood*
chemical_list: D006908:Hydroxyprogesterones; D010504:Periodic Acid; C021012:17 alpha,20 beta-dihydroxypregn-4-en-3-one; D000735:Androstenedione; D015089:20-Hydroxysteroid Dehydrogenases