Tubal Patency and Fertility in Repeat Breeder cows

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  • リピートブリーダー牛の卵管通気検査とその後の受胎成績
  • リピートブリーダー ウシ ノ ランカン ツウキ ケンサ ト ソノゴ ノ ジュタ

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Abstract

By tubal-insufflation technique to see the oviduct patency and subsequent fertility in 56 Holstein repeat breeder cows, 5 types of the CO2 kymograph curves were obtained. Of 22 (39.3%) cases with the patent oviducts and 4 (7.1%) cases having temporary impassibleness with mucus and/or secretion, 14 and 2 cases became pregnant after the test, respectively. Eighteen (32.1%) cases with bilateral impassibleness of oviducts and 7 (12.5%) cases with unilateral impassibleness were slaughtered. The test was unsuccessful in 5 (9.0%) cases due to the gas escape thorough the cervix.

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