title: Gas chromatographic/mass spectrometric analysis of 19-nortestosterone urinary metabolites in cattle.
abstract: Gas chromatographic and mass spectrometric method is used to confirm the administration of 19-nortestosterone to cattle. The most abundant metabolites detected were 19-norepitestosterone and 5 alpha-oestrane-3 beta,17 alpha-diol.
authors.affiliation: INRA, Laboratoire No. 54189, Service de biochimie, Ecole Nationale Vétérinaire de Lyon, Charbonnières, France.
authors.forename: E
authors.initials: E
authors.lastname: Benoît
authors.forename: J L
authors.initials: JL
authors.lastname: Guyot
authors.forename: D
authors.initials: D
authors.lastname: Courtot
authors.forename: P
authors.initials: P
authors.lastname: Delatour
mesh_terms: D000818:Animals; D002417:Cattle / Q000378:metabolism* / Q000652:urine; D004962:Estranes / Q000032:analysis / Q000652:urine; D005260:Female; D008401:Gas Chromatography-Mass Spectrometry; D007273:Injections, Intramuscular; D009277:Nandrolone / Q000008:administration & dosage / Q000378:metabolism*
chemical_list: D004962:Estranes; D009277:Nandrolone