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Is an increase in antioxidant capacity for dairy cows under hot summer season with feed improvement compatible with energy efficiency improvement?

Research Project

Project/Area Number 25450397
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Animal production science
Research InstitutionHiroshima University

Principal Investigator

Kurokawa Yuzo  広島大学, 生物圏科学研究科, 准教授 (00234592)

Co-Investigator(Kenkyū-buntansha) Obitsu Taketo  広島大学, 生物圏科学研究科, 教授 (30194632)
Project Period (FY) 2013-04-01 – 2016-03-31
Project Status Completed (Fiscal Year 2015)
Budget Amount *help
¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2015: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2014: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2013: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Keywords酸化ストレス / 抗酸化能 / 乳牛 / 乳生産 / エネルギー代謝 / グルコース / メチオニン / 夏季暑熱 / ビタミンC / 中鎖脂肪酸 / 周産期 / 直腸温度 / インスリン
Outline of Final Research Achievements

The objective of this study was to grasp the relationship between oxidative status and energy metabolism of dairy cows in hot summer season. Exp1; in hot summer season, blood glucose and vitamin C were decreased, but MDA, oxidative stress marker, was not affected. It was suggested that in summer hot season reactive oxygen spices synthesis was decreased with the change in glucose metabolism, and uptake of vitamin C, which is antioxidant, by peripheral tissue cell increased. Exp2; supplementation of bypass-methionine in hot summer season decreased uptake of glucose by mammalian tissue. This result suggested that bypass-methionine supplementation increased glutathione synthesis in the liver and decreased the uptake of glucose by the mammalian tissue without increase in MDA. In conclusion, it was suggested the possibility of development of feeding technology for preventing oxidative stress without negative effects on milk production in hot summer season.

Report

(4 results)
  • 2015 Annual Research Report   Final Research Report ( PDF )
  • 2014 Research-status Report
  • 2013 Research-status Report
  • Research Products

    (4 results)

All 2016 2015

All Journal Article (2 results) (of which Peer Reviewed: 2 results) Presentation (2 results)

  • [Journal Article] 夏季暑熱が低密度飼養乳牛の飼料摂取行動、休息行動、自動搾乳システム訪問に及ぼす影響.2015

    • Author(s)
      沖田美紀・古川平哲・山下莉奈・爾見知保・豊後貴嗣・黒川勇三
    • Journal Title

      日本家畜管理学会誌

      Volume: 51 Pages: 73-82

    • NAID

      110010000612

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 夏季暑熱が低密度飼養乳牛の飼料摂取行動、休息行動、自動搾乳システム訪問に及ぼす影響2015

    • Author(s)
      沖田美紀・古川平哲・山下莉奈・爾見知保・豊後貴嗣・黒川勇三
    • Journal Title

      Animal behavior and management

      Volume: 51

    • NAID

      110010000612

    • Related Report
      2014 Research-status Report
    • Peer Reviewed
  • [Presentation] 乳牛の分娩前後における尾動脈および乳静脈血中酸化ストレス指標の変化2016

    • Author(s)
      黒川勇三・森本実穂・竹内悠貴・沖田美紀・小櫃剛人・杉野利久
    • Organizer
      日本畜産学会第121回大会
    • Place of Presentation
      日本獣医生命科学大学 東京都武蔵野市
    • Year and Date
      2016-03-29
    • Related Report
      2015 Annual Research Report
  • [Presentation] 乳牛の産次が周産期における血液性状と酸化ストレス、抗酸化能に及ぼす影響2015

    • Author(s)
      黒川勇三・山下莉奈・蒲野紳之助・吉田ひかる・沖田美紀・小櫃剛人・杉野利久
    • Organizer
      日本畜産学会第119回大会
    • Place of Presentation
      栃木県宇都宮大学峯キャンパス
    • Year and Date
      2015-03-28
    • Related Report
      2014 Research-status Report

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Published: 2014-07-25   Modified: 2019-07-29  

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