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Title
  • en Accessory corpora lutea formation in pregnant Hokkaido sika deer (Cervus nippon yesoensis) investigated by examination of ovarian dynamics and steroid hormone concentrations
Creator
Accessrights open access
Subject
  • Other en Accessory corpus luteum
  • Other en Estradiol
  • Other en Follicular wave
  • Other en Progesterone
  • Other en Sika deer
  • NDC 649
Description
  • Abstract en Generally, sika deer conceive a single fetus, but approximately 80% of pregnant females have two corpora lutea (CLs). The function of the accessory CL (ACL) is unknown; moreover, the process of ACL formation is unclear, and understanding this is necessary to know its role. To elucidate the process of ACL formation, the ovarian dynamics of six adult Hokkaido sika deer females were examined ultrasonographically together with peripheral estradiol-17 beta and progesterone concentrations. ACLs formed in three females that conceived at the first estrus of the breeding season, but not in those females that conceived at the second estrus. After copulation, postconception ovulation of the dominant follicle of the first wave is induced by an increase in estradiol-17 beta, which leads to formation of an ACL. A relatively low concentration of progesterone after the first estrus of the breeding season is considered to be responsible for the increase in estradiol-17 beta after copulation.
Publisher ja 日本繁殖生物学会
Date
    Issued2015-02
Language
  • eng
Resource Type journal article
Version Type VoR
Identifier HDL http://hdl.handle.net/2115/59488
Relation
  • isIdenticalTo DOI https://doi.org/10.1262/jrd.2014-076
Journal
    • PISSN 0916-8818
    • NCID AA10936678
      • en Journal of Reproduction and Development
      • Volume Number61 Issue Number1 Page Start61 Page End66
File
Oaidate 2023-07-26