著者

長岐 祐子 三辺 正人 原井 一雄 中澤 正絵 津田 志麻 高橋 優子 香月 麻紀子 杉山 貴志 豊永 久美 山岸 貴美恵 村上 恵子 山本 裕子 漆原 譲治 山口 みどり 安藤 和枝 稲垣 幸司 野口 俊英

出版者

特定非営利活動法人 日本歯周病学会

雑誌

特定非営利活動法人 日本歯周病学会学術大会 プログラムおよび講演抄録集

巻号頁・発行日

vol.2011, pp.10-10, 2011

著者

橋爪 力 高橋 優子 沼田 恵 SASAKI Koichi UENO Kimiko OHTSUKI Kenji KAWAI Mami ISHII Aya

出版者

THE SOCIETY FOR REPRODUCTION AND DEVELOPMENT

雑誌

The Journal of reproduction and development (ISSN:09168818)

巻号頁・発行日

vol.45, no.4, pp.273-281, 1999-08-01

被引用文献数

5 29

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The objectives of this research were to characterize plasma profiles of growth hormone (GH), prolactin (PRL) and insulin-like growth factor-I (IGF-I) during gestation and the lactation period in goats, as well as in their suckling growing kids. There were no obvious changes in the GH or PRL profiles during gestation, but secretion of both GH and PRL increased acutely after parturition. The elevated GH concentrations were maintained until 3 months after parturition, whereas the PRL concentrations decreased gradually after parturition. The elevated hormone concentrations are thought to be caused mainly by an increase in the secretory pulse amplitudes. In contrast to the GH and PRL profiles, the plasma IGF-I concentrations during late gestation were significantly higher than the post-parturition concentrations, and the IGF-I concentrations in late gestation decreased gradually until the day of parturition. The plasma GH, PRL and IGF-I concentrations in kids 1 week after birth were high, and concentrations of each hormone decreased thereafter. These results show that the increased secretory potencies of pituitary GH and PRL after parturition are caused mainly by an increase in the secretory pulse amplitudes and that plasma GH is inversely related to plasma IGF-I compared over gestation and the lactation period in goats.