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Impact of ACTH during oestrus on the ultrastructure of the spermatozoa and their environment in the tubal reservoir of the postovulatory sow
Swedish University of Agriculture Science, Sweden; .
Swedish University of Agriculture Science, Sweden; .
Swedish University of Agriculture Science, Sweden; .ORCID iD: 0000-0002-5194-2124
Swedish University of Agriculture Science, Sweden; .
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2006 (English)In: Animal Reproduction Science, ISSN 0378-4320, E-ISSN 1873-2232, Vol. 93, no 3-4, 231-245 p.Article in journal (Refereed) Published
Abstract [en]

This study investigated whether injections of synthetic ACTH (simulating short-term stress) in sows during standing oestrus have a negative effect on spermatozoa and the local intraluminal environment in the utero-tubal junction (UTJ) and isthmus. Seven of the 14 sows were given ACTH through a jugular catheter every 2 h from the onset of standing oestrus until the sow ovulated (ACTH-group), while the other seven sows were given NaCl solution (C-group). All sows were artificially inseminated before ovulation. Six hours after ovulation (detected with transrectal ultrasonography) the sows were anaesthetised, the right oviduct was fixed in toto by vascular perfusion with glutaraldehyde, and the UTJ and specimens from the isthmus were prepared for scanning electron microscopy (SEM). SEM revealed that a seemingly viable population of spermatozoa remained in the UTJ 6 It after ovulation. A majority of sows in the ACTH-group had moderately to exaggerated amounts of mucus in the intraluminal environment of the sperm reservoir. In conclusion, stress simulated by exogenous ACTH in sows may alter the intraluminal environment of the sperm reservoir. (c) 2005 Elsevier B.V. All rights reserved.

Place, publisher, year, edition, pages
Elsevier Masson , 2006. Vol. 93, no 3-4, 231-245 p.
Keyword [en]
ACTH; pig-oviduct; sperm reservoir; stress; utero-tubal junction
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-101799DOI: 10.1016/j.anireprosci.2005.06.031ISI: 000238293500004OAI: oai:DiVA.org:liu-101799DiVA: diva2:666817
Available from: 2013-11-24 Created: 2013-11-22 Last updated: 2017-12-06

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Rodriguez-Martinez, Heriberto

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