Serum gonadotrophin levels in prepubertally castrated male sheep treated for long periods with propionated testosterone, dihydrotestosterone, 19-hydroxytestosterone or oestradiol

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Authors:
R. F. Parrott
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and
R. V. Davies
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DOI:
https://doi.org/10.1530/jrf.0.0560543
Volume/Issue:
Volume 56: Issue 2
Page Range:
543–548
Article Type:
Research Article
Online Publication Date:
Jul 1979
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Summary. At different times of the year, groups of wethers were treated with 20 mg testosterone, dihydrotestosterone or 19-hydroxytestosterone propionates/day or 2 mg oestradiol dipropionate/day, or the oil vehicle, for 6 weeks after a 2-week control period. LH and FSH values were determined by radioimmunoassay of serum samples collected at regular intervals. Oestradiol and dihydrotestosterone reduced LH and FSH concentrations whereas 19-hydroxytestosterone and testosterone had no effect.

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Print ISSN:
1470-1626
Online ISSN:
1741-7899