| Project/Area Number |
24580457
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Clinical veterinary science
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| Research Institution | University of Miyazaki |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
HIGUCHI Hidetoshi 酪農学園大学, 獣医学部, 教授 (00305905)
OTSUKA Hiromichi 酪農学園大学, 獣医学部, 准教授 (40327458)
KITAHARA Go 宮崎大学, 農学部, 助教 (90523415)
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Fiscal Year 2014: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2013: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2012: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
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| Keywords | 牛 / 子宮内膜炎 / マイコプラズマ / 細胞診 / 感染 / 繁殖 / 感染症 / 免疫機能 |
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| Outline of Final Research Achievements |
To clarify changes in polymorphoneutrophils percent (PMN%) in the endometrium in postpartum suckled and non-suckled Japanese black cows, and to elucidate prevalence of mycoplasma injection in the uterus in the cows, endometrial cytology samples were collected using a small brush from postpartum cows. PMN% decreased significantly from 3 to 4 weeks postpartum, particularly in suckled cows. PMN% in Japanese black cows was lower than that in Holstein cows during the postpartum period. M. bovis was isolated from the uterus in one of the samples dairy cows. In conclusion, PMN% decreased as the postpartum period progressed, and suckling may affect changes in PMN% in early postpartum Japanese black cows. Although the prevalence of mycoplasma infection in the uterus seemed not to be high, the route of infection and its effect on fertility in the cows should be investigated in future.
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