2010 Fiscal Year Final Research Report
Dynamic metabolism of arginine and its relating compounds in mammary tissues of dairy cows
| Project/Area Number |
20580296
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Zootechnical science/Grassland science
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| Research Institution | Hiroshima University |
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Principal Investigator |
OBITSU Taketo Hiroshima University, 大学院・生物圏科学研究科, 准教授 (30194632)
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| Co-Investigator(Kenkyū-buntansha) |
SUGINO Toshihisa 広島大学, 大学院・生物圏科学研究科, 助教 (90363035)
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| Project Period (FY) |
2008 – 2010
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| Keywords | アルギニン / アミノ酸 / 尿素 / 乳腺組織 / 乳タンパク質 / 乳牛 |
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| Research Abstract |
The metabolism of arginine and its relating compounds by mammary tissues were investigated to clear the nutritional role of arginine in dairy cows. After calving, extraction rate of plasma ariginine by mammary tissues dramatically increased. Supplementation of low degradable dietary protein increased the conversion ratio of the extracted arginine to milk protein without the elevation of arterial arginine. The extent of splanchnic extraction of absorbed arginine may restrict the arginine supply to the mammary tissues.
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