Gas chromatographic/mass spectrometric analysis of 19-nortestosterone urinary metabolites in cattle.
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.
Benoît
E
E
INRA, Laboratoire No. 54189, Service de biochimie, Ecole Nationale Vétérinaire de Lyon, Charbonnières, France.
Guyot
J L
JL
Courtot
D
D
Delatour
P
P
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*
D004962:Estranes; D009277:Nandrolone