Factors from fluid of the ovarian pocket that stimulate sperm motility in domestic hens

in Reproduction
Authors:
K. Ashizawa
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G. J. Wishart
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DOI:
https://doi.org/10.1530/jrf.0.0950855
Volume/Issue:
Volume 95: Issue 3
Page Range:
855–860
Article Type:
Research Article
Online Publication Date:
Aug 1992
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Summary. Fluid was collected from the region of the peritoneum surrounding the ovarian pocket of domestic hens at about the time of ovulation. This fluid, diluted to 10%, increased the motility of chicken spermatozoa by a maximum of sixfold at 40°C in vitro. Gel filtration revealed two peaks of motility-stimulating activity: one was identified as calcium and the other as a heat-labile substance of low Mr (200). It is suggested that this motility-stimulating activity may facilitate fertilization, as spermatozoa are normally stored in a quiescent state within the oviduct and can be passively transported by cilia to the site of fertilization in the ovarian pocket.

Keywords: spermatozoa; motility; domestic hen; fertilization

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