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Metabolism of 17β,19-nortestosterone in urine of calves after oral intake and intramuscular administration

✍ Scribed by E. Daeseleire; A. De Guesquière; C. Van Peteghem

Publisher: Elsevier Science
Year: 1993
Tongue: English
Weight: 606 KB
Volume: 275
Category: Article
ISSN: 0003-2670
DOI: 10.1016/0003-2670(93)80280-x

No coin nor oath required. For personal study only.

✦ Synopsis

The metabohsm of 17p,19-nortestosterone was mvestlgated m SIX calves Three calves were mJected mth Laurabolm and the other three were fed 17&19-nortestosterone-contammg food Urme samples were taken before and at regular tune Intervals after the InJection or oral intake After enzymatic hydrolysis, the sample clean-up consisted m &d-phase extraction followed by a bqmd chromatographlc punficatlon Dettion was by gas chromatography-mass spectromehy Urme samples from pregnant and non-pregnant cows and from steers were also collected and analysed m the same way

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