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dairy cows fed a trehalose-supplemented diet

Research Project

Project/Area Number 17K08040
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Animal production science
Research InstitutionTokyo University of Agriculture and Technology

Principal Investigator

Sato Kan  東京農工大学, (連合)農学研究科(研究院), 教授 (20250730)

Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2018: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2017: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywords抗酸化 / 乳牛 / ルーメン微生物 / トレハロース / 畜産学 / 応用動物 / 微生物 / 発現制御
Outline of Final Research Achievements

Dairy cows are often susceptible to a variety of metabolic and infectious diseases during the periparturient period, which is the result of increased oxidative stress. We previously reported that dietary supplementation with trehalose brings about an improvement of oxidative status in milk of cows treated in this manner compared to control. However, the mechanism underlying the antioxidant activity associated with trehalose supplementation of the diet in dairy cows has not been elucidated. The present study shows that trehalose affects to the microorganisms, particularly protozoa, in rumen, and then the products of rumen protozoa regulates the gene expression of mammary gland cells in dairy cows, resulting that the antioxidant activities are improved in the milks of dairy cows fed a trehalose supplemented diets. These results provided the evidence that the interactions of nutrients, microorganism, dairy cows, and these products involved in the production of the antioxidant milks.

Academic Significance and Societal Importance of the Research Achievements

本研究は、牛の健康を守り、ヒトに品質の高い乳や乳加工品を供給するための基礎試験を行ったものである。これまで、体の酸化ストレスを低減させる抗酸化栄養素は、小腸でそのまま吸収され、体内で抗酸化物質として機能することがほとんどであった。一方、本研究で対象としたトレハロースは、反芻動物のルーメン内微生物によって代謝され、その代謝産物が体内に移行して、細胞の遺伝子発現を変化させ、抗酸化を発揮するといった、非常に珍しい抗酸化機能を発揮することが明らかとなった。よって、本研究の成果は、学術的にも価値があり、また、この新奇な作用機作によって、抗酸化ミルクを提供する手法を確立した点で、社会的価値も高い。

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (3 results)

All 2019 2018

All Journal Article (3 results) (of which Peer Reviewed: 3 results,  Open Access: 1 results)

  • [Journal Article] Effects of 5-aminolevulinic Acid Supplementation on Milk Production, Iron Status, and Immune Response of Dairy Cows2019

    • Author(s)
      Hendawy AO, Shirai M, Takeya H, Sugimura S, Miyanari S, Taniguchi S, Sato K.
    • Journal Title

      J Dairy Sci.

      Volume: 102 Issue: 12 Pages: 11009-11015

    • DOI

      10.3168/jds.2018-15982

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Dietary Supplementation with Lysine and Threonine Modulates the Performance and Plasma Metabolites of Broiler Chicken2019

    • Author(s)
      Toshiyuki Ishii, Koichi Shibata, Shinichi Kai, Keiichi Noguchi, Amin O. Hedwy, Kan Sato
    • Journal Title

      The Journal of Poultry Science

      Volume: 56 Issue: 3 Pages: 204-211

    • DOI

      10.2141/jpsa.0180104

    • NAID

      130007683043

    • ISSN
      1346-7395, 1349-0486
    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] 機能性栄養素を用いた家畜のストレス制御による生産性の向上2018

    • Author(s)
      佐藤幹 、大津晴彦 、松下浩一 、青木直人
    • Journal Title

      家畜感染症学会

      Volume: 7 Pages: 57-64

    • NAID

      40021598444

    • Related Report
      2018 Research-status Report
    • Peer Reviewed

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Published: 2017-04-28   Modified: 2022-01-27  

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