Optimal timing for carcine artificial insemination with frozen semen and parentage testing by microsatellite markers in superfecundency

  • TSUMAGARI Shigehisa
    Laboratory of Theriogenology, College of Bioresource Sciences, Nihon University
  • ICHIKAWA Yasushi
    Laboratory of Theriogenology, College of Bioresource Sciences, Nihon University
  • TORIUMI Hiroshi
    Laboratory of Theriogenology, College of Bioresource Sciences, Nihon University
  • ISHIHAMA Kakashi
    Livestock Improvement Technology Laboratory, Livestock Improvement Association of Japan
  • MORITA Mitsuo
    Livestock Improvement Technology Laboratory, Livestock Improvement Association of Japan
  • KANAMAKI Misao
    Livestock Improvement Technology Laboratory, Livestock Improvement Association of Japan
  • TAKEISHI Masatoshi
    Laboratory of Theriogenology, College of Bioresource Sciences, Nihon University

書誌事項

タイトル別名
  • Optimal Timing for Canine Artificial Insemination with Frozen Semen and Parentage Testing by Microsatellite Markers in Superfecundency

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説明

Parentage testing was performed in sixteen litters by canine artificial inseminations with frozen semen from different sires on Days 5 and 7 after the LH surge. It became apparent that only 25% of dams had superfecundation, but 43.8% of dams were whelped after insemination only on Day 5 after the LH surge and 31.3% of dams after insemination only on Day 7. Of the total 87 puppies, 46% were born after insemination on Day 5 after the LH surge and 54% after insemination on Day 7. This result strongly suggested that canine artificial insemination with frozen semen could be sufficiently successful also on Days 5 and 7 after the LH surge.<br>

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