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Timed AI and re-AI through ovulation synchronization program in combination with follicular aspiration in early postpartum beef cows

Research Project

Project/Area Number 19580367
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Clinical veterinary science
Research InstitutionIwate University

Principal Investigator

OSAWA Takeshi  Iwate University, 農学部, 准教授 (90302059)

Co-Investigator(Kenkyū-buntansha) HIRATA Toh-ichi  岩手大学, 農学部, 助教 (20241490)
Project Period (FY) 2007 – 2008
Project Status Completed (Fiscal Year 2008)
Budget Amount *help
¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2008: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2007: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Keywords臨床繁殖 / 産科 / 黒毛和種牛 / 排卵同期化処置 / 定時人工授精 / 卵胞吸引 / Ovum pick-up
Research Abstract

分娩後早期の黒毛和種牛における卵胞吸引と排卵同期化・定時人工授精法(OPU-PRID-TAI法)の有効性および授乳が及ぼす影響を明らかにする目的で、定時人工授精前後に計4回の経腟採卵を行うとともに卵巣動態、血中性ステロイドホルモン動態および受胎率を観察した。その結果、定時人工授精後に7日間隔で連続して経腟採卵を行うことで品質の高い移植可能胚を効率よく生産することが可能であること、また、子牛を母牛から一時的に隔離することで、本法による採卵成績と受胎成績の向上が期待できることが示された。

Report

(3 results)
  • 2008 Annual Research Report   Final Research Report ( PDF )
  • 2007 Annual Research Report
  • Research Products

    (4 results)

All 2008

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

  • [Journal Article] Effect of suckling on embryo production by repeated ovum pick-up before and after timed artificial insemination in early postpartum Japanese Black cows2008

    • Author(s)
      Hirata TI, Sato M, Sasaki S, Sasaki O, Osawa T
    • Journal Title

      J. Reprod. Dev 54

      Pages: 346-351

    • NAID

      10024412285

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Effect of suckling on embryo production by repeated ovum pick-up before, and after timed artificial insemination in early post partum Japanese black cows2008

    • Author(s)
      Toh-Ichi Hirata
    • Journal Title

      Journal of Reproduction and Development 54

      Pages: 346-351

    • NAID

      10024412285

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Presentation] 黒毛和種母子牛の分娩後1週あるいは3ヶ月における分離が子牛の発育性と母牛の繁殖性に及ぼす影響(2)2008

    • Author(s)
      佐々木修一, 三浦優子, 佐々木修, 昆直樹, 杉山あかね, 平田統一, 大澤健司
    • Organizer
      第58回東北畜産学会大会
    • Place of Presentation
      福島・杉妻会館
    • Related Report
      2008 Final Research Report
  • [Presentation] 黒毛和種牛の分娩後早期定時人工授精における前処置の種類が卵胞発育に及ぼす影響2008

    • Author(s)
      昆直樹
    • Organizer
      東北畜産学会
    • Place of Presentation
      福島市, 杉妻会館
    • Related Report
      2008 Annual Research Report

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Published: 2007-04-01   Modified: 2016-04-21  

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