The central regulatory mechanism of the effect of light on growth hormone secretory rhythm in cattle.
| Project/Area Number |
25450403
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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 |
Animal production science
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| Research Institution | National Institute of Agrobiological Sciences |
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Principal Investigator |
Kasuya Etsuko 国立研究開発法人農業生物資源研究所, 動物生産生理機能研究ユニット, 主任研究員 (90355743)
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| Co-Investigator(Kenkyū-buntansha) |
SUTOH Madoka 国立研究開発法人農業・食品産業技術総合研究機構, 家畜生理栄養研究領域, 上席研究員 (40355087)
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2015: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2014: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2013: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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| Keywords | 成長ホルモン / ウシ / ドーパミン / 光 / 視床下部 / 下垂体 / 環境要因 / リズム / 驚愕反応 |
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| Outline of Final Research Achievements |
In order to clarify the regulatory mechanism underlying the suppressive effect of light exposure during dark period on GH secretory pattern in cattle, the role of the central nervous system, especially dopaminergic (DA) neurons, were evaluated. It is suggested that DA neurons have a stimulatory effect on GH secretion and are involved in generating spontaneous GH ultradian rhythm in cattle. However, the role of DA in the suppressive effect of light on GH remains to be clarified.
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Report
(4 results)
Research Products
(4 results)
