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巻牛利用乳牛牧場における繁殖障害の発生とその治療成績
http://hdl.handle.net/10232/1616
http://hdl.handle.net/10232/16165c69b042-d7aa-49fb-809b-9e4f9c9ac3eb
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
KJ00000068356.pdf (677.3 kB)
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| Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
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| 公開日 | 2015-06-04 | |||||
| タイトル | ||||||
| タイトル | 巻牛利用乳牛牧場における繁殖障害の発生とその治療成績 | |||||
| タイトル言語 | ja | |||||
| タイトル | ||||||
| タイトル | Reproductive Failure and Treatments of It in a Large Scaled Dairy Farm Using Natural Breeding System | |||||
| タイトル言語 | en | |||||
| 著者 |
浜名, 克己
× 浜名, 克己× 田浦, 保穂× 永井, 秀和× 村山, 和哉× 田代, 哲之 |
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| 言語 | ||||||
| 言語 | jpn | |||||
| 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 | departmental bulletin paper | |||||
| アクセス権 | ||||||
| アクセス権 | open access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||
| 要約 | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | Reproductive failure and treatments of it in a large scaled dairy farm employing the natural breeding system were evaluated for a period from 1969 to 1983. In a total of 6.571 times of reproductive examinations, the rates were 29.8% in positive pregnancy, 6.1% in possible pregnancy, 46.0% in negative pregnancy, and 18.1% in reproductive failure, respectively. The high rate of negative pregnancy means the normal and functional reproductive tracts with no pregnancy signs due to unknown dates of breeding. In 1,213 cases of reproductive failure, inactive ovary (62.1%) was the main cause of infertility and follicular cyst (11.3%), luteal cyst (3.4%), persistent corpus luteum (3.4%) and uterine problems (19.8%) were also found. First calving cows has rather higher incidence than other parity cows. Calving intervals of each parity were not so much affected from the cows with reproductive failure, each of them falling in less than 12 months. However, calving intervals of the cows with reproductive failure were 410 days in inactive ovary, 426 days in follicular cyst, 510 days in luteal cyst, 398 days in persistent corpus luteum and 480 days in uterine problem, respectively. These figures were noted to be quite big ones compared with the average of 349 days in case of all cows. PMS was mainly employed for the treatment of inactive ovary, with the cure-rate of 56.5% obtained. Vitamin AD_3E administration had the cure-rate of 64.7%. The average cure-rate of 561 treated cases was 58.5% and that of 193 untreated cases was 43.5%. Eighty-one cows diagnosed as inactive ovary were found pregnant later. The cure-rates of follicular cyst were 100% in manual rupture of follicle, 93.8% in rupture and hormone, 75% in HCG, and 60% in GnRH, respectively. Fourteen cows of those were found pregnant later. Manual removal, PGF_<2α> and HCG were employed for the treatments of luteal cyst and persistent corpus luteum and the total cure-rates were 62.5% and 68.7%, respectively. Uterine drug infusion and/or uterine irrigation were the treatment methods for uterine problems mostly consisting of endometritis and pyometra. The total cure-rate was very high, being 68.8% compared with 28.9% in untreated cases. It was concluded that the pattern of reproductive failure in natural breeding system was similar to that in artificial insemination system. However, a total of 108 pregnant cows were diagnosed to be affected with various reproductive diseases and 72 cases of them received any kinds of treatment. They continued the normal pregnancy, but it is assumed that there were a lot of pregnant cows in which early embryonic deaths might have occurred. The effects of the treatments for uterine diseases were clearly found, but the difference of the effects between treated and untreated groups of ovarian diseases was not so obvious. This suggests the importance of just and proper feeding and management of young heifers and milking cows as well as periodical reproductive examinations by veterinarians. | |||||
| 内容記述言語 | en | |||||
| 収録雑誌名 |
ja : 鹿兒島大學農學部學術報告 en : Bulletin of the Faculty of Agriculture, Kagoshima University 巻 40, p. 155-161, 発行日 1990-03-15 |
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| 作成日 | ||||||
| 日付 | 1990-03-15 | |||||
| 日付タイプ | Issued | |||||
| ISSN | ||||||
| 収録物識別子タイプ | PISSN | |||||
| ISSN | 04530845 | |||||
| NII書誌ID（雑誌） | ||||||
| 収録物識別子タイプ | NCID | |||||
| NC ID | AN00040603 | |||||
| 出版タイプ | ||||||
| 出版タイプ | VoR | |||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
| NDC | ||||||
| 主題Scheme | NDC | |||||
| 主題 | 610 | |||||
| NIIsubject | ||||||
| 主題言語 | ja | |||||
| 主題Scheme | Other | |||||
| 主題 | 農学 | |||||
| 公開者・出版者 | ||||||
| 出版者 | 鹿児島大学 | |||||
| 出版者言語 | ja | |||||
| 公開者・出版者 | ||||||
| 出版者 | Kagoshima University | |||||
| 出版者言語 | en | |||||
