Matches in UGent Biblio for { <https://biblio.ugent.be/publication/322089#aggregation> ?p ?o. }
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- aggregation classification "A1".
- aggregation creator B163640.
- aggregation creator B163641.
- aggregation creator B163642.
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- aggregation date "2005".
- aggregation format "application/pdf".
- aggregation hasFormat 322089.bibtex.
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- aggregation isPartOf urn:issn:0265-203X.
- aggregation language "eng".
- aggregation rights "I have transferred the copyright for this publication to the publisher".
- aggregation subject "Veterinary Sciences".
- aggregation title "Androstadienetrione, a boldenone-like component, detected in cattle faeces with GC-MSn and LC-MSn".
- aggregation abstract "Boldenone (1,4-androstadiene-17-ol-3-one, Bol) has been the subject of a heated debate because of ongoing confusion about its endogenous or exogenous origin when detected in one of its forms in faecal or urine samples from cattle. An expert report was recently written on the presence and metabolism of Bol in various animal species. Androstadienedione (ADD) is a direct precursor of 17 beta-boldenone (beta Bol). It is a 3,17-dione; beta Bol is a 17-ol-3-one. Not much is published on 1,4-androstadiene-3,17-diol, which is a 3,17-diol (ADL). If animals were exposed for a longer period to one of these analytes, a metabolic pathway would be initiated to eliminate these compounds. Similar to recent testosterone metabolism studies in the aquatic invertebrate Neomysis integer, ADD, beta Bol and ADL could also be eliminated as hydroxymetabolites after exposure. The presence of 1-keto-steroids or 11-hydroxy-metabolites in faecal samples can interfere with a confirmation method by gas chromatography-negative chemical ionization mass spectrometry (GC-NCI-MS), after oxidation of corticosteroids with a double bond in the A-ring (e. g. prednisolone or its metabolite prednisone). The presence of androstadienetrione (ADT) in faecal samples of cattle has never been reported. The origin of its presence can be explained through different pathways, which are presented in this paper.".
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- aggregation endPage "807".
- aggregation issue "9".
- aggregation startPage "798".
- aggregation volume "22".
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