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The contribution of transmethylation pathway in the ruminant nutrition

Research Project

Project/Area Number 18K05947
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 42010:Animal production science-related
Research InstitutionHiroshima University

Principal Investigator

Obitsu Taketo  広島大学, 統合生命科学研究科(生), 教授 (30194632)

Co-Investigator(Kenkyū-buntansha) 杉野 利久  広島大学, 統合生命科学研究科(生), 准教授 (90363035)
Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2020: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2019: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2018: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywordsメチオニン回路 / ギ酸 / フィトール / 発酵TMR / エタノール / 初乳 / ホモシステイン / 肝臓 / 筋肉 / 熱産生量 / エネルギー代謝 / メチオニン / ヒツジ / 葉酸 / メチル基代謝 / メチル基 / 血漿ギ酸濃度 / 反芻家畜
Outline of Final Research Achievements

This study aimed to clarify the factors affecting methyl group metabolism (one-carbon metabolism), especially in methionine cycle, in ruminants and their effects on nutrient metabolism. Following novel results were obtained using newborn calves and mature sheep. 1) Colostrum feeding enhances plasma concentration of formic acid and amino acids relating with methyl group metabolism. 2) Dietary ethanol does not affect the activity of the methionine cycle in ruminants. 3)Phytol, a component of chlorophyll in forage, enhances plasma concentration of methyl donors of formic acid, serine and glycine, while it increases plasma triglyceride concentration as well.

Academic Significance and Societal Importance of the Research Achievements

ギ酸が生体分子のメチル基給源となることは知られていたが、これまで報告の少なかった反芻家畜における血漿中のギ酸濃度とその変動要因の一端を明らかにした。クロロフィルを構成するフィトールがメチル基代謝を活性化させるという新規の成果を得た。生体の恒常性にとって重要な代謝経路であるメチル基代謝に関して得られた基礎的知見は、家畜の健全飼育のための技術開発に貢献しうる。

Report

(4 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (2 results)

All 2021 2019

All Journal Article (1 results) (of which Peer Reviewed: 1 results,  Open Access: 1 results) Presentation (1 results) (of which Int'l Joint Research: 1 results)

  • [Journal Article] Phytol supplementation alters plasma concentrations of formate, amino acids, and lipid metabolites in sheep2021

    • Author(s)
      Ding, L. L., Matsumura, M., Obitsu, T., Sugino, T.
    • Journal Title

      Animal

      Volume: 15 Issue: 3 Pages: 100174-100174

    • DOI

      10.1016/j.animal.2021.100174

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] Phytol alters plasma concentrations of formic acid and amino acids related to one-carbon donors in sheep fed a high-fat diet2019

    • Author(s)
      Ding, L., Matsumura, M., Obitsu, T., Sugino, T.
    • Organizer
      The 12th Joint Rumen Metabolism and Physiology Symposium
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research

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Published: 2018-04-23   Modified: 2022-01-27  

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