Accessory corpora lutea formation in pregnant Hokkaido sika deer (Cervus nippon yesoensis) investigated by examination of ovarian dynamics and steroid hormone concentrations

Yanagawa, Yojiro; Matsuura, Yukiko; Suzuki, Masatsugu et al.

Journal of Reproduction and Development, 2015, 61(1), 61-66

Permalink : https://hdl.handle.net/2115/59488

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アクセス権
open access
URI
https://hdl.handle.net/2115/59488
タイトル
Accessory corpora lutea formation in pregnant Hokkaido sika deer (Cervus nippon yesoensis) investigated by examination of ovarian dynamics and steroid hormone concentrations
著者
Yanagawa, Yojiro ; Matsuura, Yukiko ; Suzuki, Masatsugu ; Saga, Shin-ichi ; Okuyama, Hideto ; Fukui, Daisuke ; Bando, Gen ; Nagano, Masashi ; Katagiri, Seiji ; Takahashi, Yoshiyuki ; Tsubota, Toshio
著者名
Yanagawa, Yojiro
e-Rad_Researcher
60374245
著者名
Matsuura, Yukiko
e-Rad_Researcher
90216440
著者名
Suzuki, Masatsugu
著者名
Saga, Shin-ichi
著者名
Okuyama, Hideto
著者名
Fukui, Daisuke
著者名
Bando, Gen
e-Rad_Researcher
70312402
著者名
Nagano, Masashi
e-Rad_Researcher
00292061
著者名
Katagiri, Seiji
e-Rad_Researcher
70167485
著者名
Takahashi, Yoshiyuki
e-Rad_Researcher
10207441
著者名
Tsubota, Toshio
言語
英語
キーワード
Accessory corpus luteum
Estradiol
Follicular wave
Progesterone
Sika deer
発行日
2015-02
出版者
日本繁殖生物学会
収録物名
Journal of Reproduction and Development
巻(号)
61(1)
ページ
61-66
抄録
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.
資源タイプ
学術雑誌論文
出版タイプ
Version of Record
PISSN
0916-8818
NCID
AA10936678
関連情報 (isIdenticalTo)
出版社版DOI
https://doi.org/10.1262/jrd.2014-076