Analysis of infertility in cattle using positron emission tomography
| Project/Area Number |
23658245
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Basic veterinary science/Basic zootechnical science
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| Research Institution | Kitasato University |
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Principal Investigator |
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| Project Period (FY) |
2011 – 2012
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| Project Status |
Completed (Fiscal Year 2012)
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| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2012: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2011: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
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| Keywords | 生理 / 精子 / 受胎能 / 精子走化性 / 人工授精 / ウシ / 低受胎性 / 精液 / 精しょう / 精子受胎能 |
|---|
| Research Abstract |
Artificial insemination (AI) has been carried out in cattle production, but it is announced that the fertility rate after AI has been decreasing in the latest decade. To understand a fundamental factor on low fertility, the present study aimed to demonstrate sperm movement and mechanism for its movement. As a result, this study showed that sperm chemotaxis may have a role for sperm movement to a site of fertilization with ovulated eggs, suggesting that an ability for sperm chemotaxis should be considered when sperm quality be assessed.
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Report
(3 results)
Research Products
(3 results)
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[Presentation] Possible Candidates of Sperm Chemotatxis in Bulls, Boars and Goats.2011
Author(s)
Rie Saito, Rino Inada, Naho Maruyama, Asuka Hamada, Kanako Morohaku,Kenji Momozawa,Hiroshi Sasada
Organizer
the Society for the Study of Reproduction, USA
Place of Presentation
米国Oregon Convention Center,Portland, Oregon
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