Title |
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Accessory corpora lutea formation in pregnant Hokkaido sika deer (Cervus nippon yesoensis) investigated by examination of ovarian dynamics and steroid hormone concentrations
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Creator |
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Accessrights |
open access |
Subject |
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Other
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Accessory corpus luteum
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Other
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Estradiol
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Other
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Follicular wave
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Other
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Progesterone
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Other
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Sika deer
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NDC
649
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Description |
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Abstract
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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.
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Publisher |
ja
日本繁殖生物学会
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Date |
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Language |
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Resource Type |
journal article |
Version Type |
VoR |
Identifier |
HDL
http://hdl.handle.net/2115/59488
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Relation |
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isIdenticalTo
DOI
https://doi.org/10.1262/jrd.2014-076
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Journal |
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PISSN
0916-8818
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NCID
AA10936678
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en
Journal of Reproduction and Development
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Volume Number61
Issue Number1
Page Start61
Page End66
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File |
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Oaidate |
2023-07-26 |