Effect of Fenprostalene 14Days after Fertirelin Treatment on Intervals from Treatment to Conception in Cows with Follicular Cysts Diagnosed by Milk Progesterone Test.

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  • フェルチレリン投与後14日目におけるフェンプロスタレンの投与が乳牛卵胞嚢腫の治癒期間に及ぼす効果
  • フェルチレリン投与後14日目におけるフェンプロスタレンの投与が乳牛卵胞嚢腫の治癒期間に及ぼす影響〔英文〕
  • フェルチレリン トウヨゴ 14ニチメ ニ オケル フェンプロスタレン ノ トウ

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Abstract

Of 170 cows with ovarian cysts which were detected by palpation of the ovaries per rectum, 88 cows (51.8%) were diagnosed as having follicular cysts on the basis of milk progesterone concentrations. Eighty-three of the 88 cows were used for treatment trials. A group of 56 cows injected subcutaneously with fenprostalene, prostaglandin F2α analog, 14 days after treatment with fertirelin, an analog of gonadotropin-releasing hormone, compared with another 27 cows treated only with fertirelin (controls), showed a higher pregnancy rate within 100 days after the initial treatment (66.1 vs 48.1%) and shorter intervals from the treatment to conception (30±21 vs 43±27 days). It was concluded that the administration of fenprostalene following fertirelin treatment is effective in shortening the interval from treatment to conception in cows with follicular cysts.

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