スナネズミ受精卵の経時的変化に関する研究 Chronological Changes in Fertilized Eggs of the Mongolian Gerbil (Meriones unguiculatus)

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Author(s)

    • 佐藤 誠 SATO Makoto
    • 山形大学農学部生物機能調節学講座 Section of Bioprocess Engineering, Faculty of Agriculture, Yamagata, University

Abstract

スナネズミにおける受精卵の経時的変化についてはほとんど報告されていない.そこで本研究では,スナネズミ受精卵の経時的変化を調べた.過排卵処理した雌スナネズミをhCG投与後雄と同居させ,妊娠雌をhCG投与後16,19,20時間目に屠殺した.屠殺後,受精卵の雌雄前核及び精子尾部の存在を確認した.その結果,雌雄前核の割合は,hCG投与後16時間目では24.5%,19時間目では58.9%,22時間目では67.9%と時間毎に増加を示した.精子尾部の割合では,hCG投与後16時間目では85.0%,19時間目では58.0%,22時間目では28.0%と時間毎に減少を示した.

There have been very few reports about fertilized eggs of the Mongolian gerbil. This study was therefore designed to determine the chronological changes in fertilized eggs of the Mongolian gerbil. Superovulated females were monogamously paired with males and pregnant females were killed at 16, 19 and 22 hours after hCG injection. After slaughter, the presence of female and male pronuclei and sperm tail was examined. Rates of female and male pronuclei increased with the collection time for fertilized eggs (24.5, 58.9 and 67.9% at 16, 19 and 22 hr, respectively). Rates for a fertilizing sperm tail out of the total number of fertilization eggs decreased with the collection time for fertilized eggs (85.0, 58.0 and 28.0% at 16, 19 and 22 hr, respectively).

Journal

  • Journal of Mammalian Ova Research

    Journal of Mammalian Ova Research 18(3), 127-129, 2001-10-01

    JAPANESE SOCIETY OF OVA RESEARCH

References:  12

Codes

  • NII Article ID (NAID)
    10008024586
  • NII NACSIS-CAT ID (NCID)
    AN10548943
  • Text Lang
    ENG
  • Article Type
    SHO
  • ISSN
    13417738
  • NDL Article ID
    5982125
  • NDL Source Classification
    ZR4(科学技術--生物学--動物)
  • NDL Call No.
    Z18-1673
  • Data Source
    CJP  NDL  J-STAGE  JASI 
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