Effects of sexual stimulation on plasma levels of LH and testosterone in rams from high- and low-fertility flocks

in Reproduction
Authors:
R. W. Moore
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,
D. Whyman
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, and
P. R. Wilson
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DOI:
https://doi.org/10.1530/jrf.0.0530067
Volume/Issue:
Volume 53: Issue 1
Page Range:
67–70
Article Type:
Research Article
Online Publication Date:
May 1978
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Summary. Plasma LH and testosterone levels did not differ significantly between high and low fertility rams before or after sexual stimulation (ejaculation or teasing). Repeated stimulation caused significant elevation of mean plasma LH and an almost significant rise in testosterone concentration. Plasma testosterone peaks followed those of LH after 30–60 min. A single sexual stimulation did not always cause an LH peak or increase the mean LH level.

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