2013 Fiscal Year Final Research Report
Development of rumen microbial profiling to identify low methane-producing cattle
| Project/Area Number |
23380156
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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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 | Hokkaido University |
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Principal Investigator |
KOBAYASHI Yasuo 北海道大学, (連合)農学研究科(研究院), 教授 (50153648)
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| Co-Investigator(Kenkyū-buntansha) |
KOIKE Satoshi 北海道大学, 大学院・農学研究院, 助教 (90431353)
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| Project Period (FY) |
2011-04-01 – 2014-03-31
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| Keywords | メタン低減 / 地球温暖化 / ルーメン / 菌叢 / 個体差 |
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| Research Abstract |
Toward the development of rumen microbial profiling to identify low methane-producing cattle, rumen bacteria and archaea showing specific changes with methane-inhibiting cashew nut shcll liquid were explored. The abundance of methanogenic archaeal mOTU35 was found to positively correlated to methane production of Holstein dry cows, Thai naitive cattle and swamp buffaloes. Meanwhile, the abundance of eubacterial OTU95 showed negative correlation with methane production and positive correlation with propionate production only in dry cows. These results suggest that both microbial groups, especially mOTU35, is a core member controling methane production in the rumen. Therefore, the monitoring of mOTU35 could offer an index for estimating methane production of individual cattle.
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[Remarks] 2012年7月27日 北海道新聞「温暖化原因 牛のゲップ抑制」 報道関係
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[Remarks] 2012年10月15日 財界さっぽろ「健康食品から宇宙開発まで 北大イチオシ研究」 報道関係
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[Remarks] 2013年7月26日 北海道テレビ「胃からメタン抑える研究進む」 2012年度HBC制作環境CM (全国CM コンクール優秀賞受賞) 報道関係
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