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Effect of Bovine Somatotropin Administration on Day 11 after Artificial Insemination in Estrus-Induced Ewes during the Non-Breeding Season
https://obihiro.repo.nii.ac.jp/records/146
https://obihiro.repo.nii.ac.jp/records/1465e7d6cee-4726-4f82-bff4-9711f883363b
名前 / ファイル | ライセンス | アクション |
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effect.pdf (208.8 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||||
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公開日 | 2011-06-27 | |||||||
タイトル | ||||||||
言語 | en | |||||||
タイトル | Effect of Bovine Somatotropin Administration on Day 11 after Artificial Insemination in Estrus-Induced Ewes during the Non-Breeding Season | |||||||
言語 | ||||||||
言語 | eng | |||||||
キーワード | ||||||||
言語 | en | |||||||
主題Scheme | Other | |||||||
主題 | Bovine somatotropin | |||||||
キーワード | ||||||||
言語 | en | |||||||
主題Scheme | Other | |||||||
主題 | Artificial insemination | |||||||
キーワード | ||||||||
言語 | en | |||||||
主題Scheme | Other | |||||||
主題 | Progesterone | |||||||
キーワード | ||||||||
言語 | en | |||||||
主題Scheme | Other | |||||||
主題 | Conception rate | |||||||
キーワード | ||||||||
言語 | en | |||||||
主題Scheme | Other | |||||||
主題 | Ewes | |||||||
資源タイプ | ||||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||
資源タイプ | journal article | |||||||
著者 |
Fukui, Yutaka
× Fukui, Yutaka× Yamamura, Kunio× Matsunaga, Nobuyoshi× Miyamoto, Akio
WEKO
151
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抄録 | ||||||||
内容記述タイプ | Abstract | |||||||
内容記述 | The present study aimed to examine the possibility that bovine somatotropin (BST) treatment after artificial insemination (AI) may improve the fertility by the stimulation of corpus luteum (CL) function in seasonally anestrous ewes. The experiment was conducted at the Tawa Field Station, Shibecha-cho in Hokkaido, Japan, during the non-breeding season (May, 1995). Eighty-nine mature (2 to 3 years old) Suffolk and Suffolk-crossed ewes were treated with controlled internal drug release devices containing 0.3 g progesterone (CIDR-G) for 12 days. Ewes were injected intramuscularly with 500 IU PMSG the day before CIDR removal. Eighty-seven ewes were assigned to an insemination of frozen semen on a fixed-time basis (42 to 50 h) after removal of CIDR. On the 11th day after AI (13 days after CIDR removal), 43 inseminated ewes were received 100 mg of recombinant BST, while the remaining 44 ewes were given vehicle as controls. The BST administration appeared to reduce pregnancy (65.1% vs. 72.7%) and lambing (51.2 vs. 65.9%) rates, prolificacy (145.5% vs. 165.5%) and proportion of ewes rearing more than two lambs (47.6% vs. 60.7%), as compared with controls, although there was no signifiant difference. BST-treated ewes had higher plasma GH concentrations (endogenous GH plus exogenous BST) at Day 19 (8 days after BST treatment) as compared with controls in both pregnant and non-pregnant ewes (P<0.05). Also, in the control group, plasma GH concentration of pregnant ewes was higher than that of non-pregnant ewes (P<0.05). Plasma progesterone (P) and estradiol-17β (E) cencentrations at Day 19 were lower in BST-treated ewes than that of control ewes (P<0.05). In conclusion, an administration with 100 mg of BST on Day 11 after AI during the non-breeding season resulted in the suppression of the ovarian function 1 week thereafter. Consequently, the conception rate and lambing rate did not improve by the present BST treatment in the ewe. | |||||||
言語 | en | |||||||
書誌情報 |
en : Journal of Reproduction and Development 巻 46, 号 2, p. 133-138, 発行日 2000 |
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出版者 | ||||||||
言語 | en | |||||||
出版者 | Japanese Society of Animal Reproduction | |||||||
ISSN | ||||||||
収録物識別子タイプ | PISSN | |||||||
収録物識別子 | 09168818 | |||||||
書誌レコードID | ||||||||
収録物識別子タイプ | NCID | |||||||
収録物識別子 | AA10936678 | |||||||
DOI | ||||||||
関連タイプ | isIdenticalTo | |||||||
識別子タイプ | DOI | |||||||
関連識別子 | info:doi/10.1262/jrd.46.133 | |||||||
権利 | ||||||||
言語 | en | |||||||
権利情報 | Japanese Society of Animal Reproduction | |||||||
フォーマット | ||||||||
内容記述タイプ | Other | |||||||
内容記述 | application/pdf | |||||||
著者版フラグ | ||||||||
出版タイプ | VoR | |||||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 |