Pregnancy Rate of Non-surgical Frozen Embryo Transfer Using Vaginal Speculum in Cows

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  • NISHIGAI Masahiko
    Nasu ET Institute Laboratory of Veterinary Reproduction, Tokyo University of Agriculture and Technology
  • KAMOMAE Hideo
    Laboratory of Veterinary Reproduction, Tokyo University of Agriculture and Technology
  • TANAKA Tomomi
    Laboratory of Veterinary Reproduction, Tokyo University of Agriculture and Technology
  • KANEDA Yoshihiro
    Laboratory of Veterinary Reproduction, Tokyo University of Agriculture and Technology

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  • 牛の腟鏡を使用した凍結胚移植における受胎成績
  • ウシ ノ チツキョウ オ シヨウシタ トウケツ ハイ イショク ニ オケル ジ

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Abstract

A total of 311 recipient cows received one frozen-thawed embryo non-surgically using a vaginal speculum. and an embryo transfer gun. Group A(n=153)receiving the embryo using the gun without a protective sheath showed a pregnancy rate of 56.9%(87/153), while the rate in Group B (n=158) using the gun covered with the protective sheath was 54.4%(86/158). The results indicate the usefulness of the vaginal speculum for non-surgical embryo transfer with an embryo transfer gun without a protective sheath.<br>

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