PGF_<2α>とホルモンで排卵誘起処理したヤギでの排卵率,胚の回収および発生 Ovulation Rate, Embryo Recovery and Development in Hormone-Induced Ovulated Goats Treated with PGF_<2α> Analogue

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ヤギにおけるホルモン処理後の排卵率および胚の回収と胚の発生を調べた.発情を非同期化ヤギでは繁殖季節にかかわらず,FSH連続およびPMSG単独処理は非処理より2∼3倍の排卵を誘起した.一方,胚の回収率はFSHとPMSG処理間で異なったが,平均黄体数は同様であった.処理ヤギでの胚の発生では,交尾後6∼8日後で桑実期胚が回収され,8∼10日後に胚盤胞期胚が得られた.これらの結果から,ホルモンで排卵誘起処理したヤギで繁殖期にかかわらず正常胚が得られることがわかった.

In embryo transfer, the viability of the embryo collected in vivo or produced in vitro is important for success in the subsequent prepnancy. The present study was conducted to estimate the rate of embryo recovery in hormone-induced ovulated goats and to examine how embryo development would proceed in these animals. A series of FSH injections and a single injection of PMSG under asynchronization of estrus could induce ovulations 2 to 3 fold higher than in the unstimulated control independent of the breeding season. On the other hand, the rate of embryo recovery in FSH and PMSG injection groups differed, whereas the average number of the corpora lutea (CL) in both groups was similar. Profiles of embryo development showed that the embryos at the morula stage were collected from 6 to 8 days post coitus and at the blastocyst stage from 8 to 10 days. These results suggest that in hormonally treated goats healthy embryos could be obtained regardless of the breeding season.

収録刊行物

  • Journal of mammalian ova research = 日本哺乳動物卵子学会誌

    Journal of mammalian ova research = 日本哺乳動物卵子学会誌 18(3), 89-92, 2001-10-01

    日本哺乳動物卵子学会

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各種コード

  • NII論文ID(NAID)
    10008024430
  • NII書誌ID(NCID)
    AN10548943
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    13417738
  • NDL 記事登録ID
    5982006
  • NDL 雑誌分類
    ZR4(科学技術--生物学--動物)
  • NDL 請求記号
    Z18-1673
  • データ提供元
    CJP書誌  NDL  IR  J-STAGE 
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