The Accuracy of Diagnosis of Follicular Cyst and Ovarian Quiescence as Estimated from the Peripheral Levels of Progesterone in Cattle

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  • Miyake Y-I.
    Laboratory of Theriogenology, Iwate University Laboratory of Theriogenology, Obihiro University of Agriculture and Veterinary Medicine
  • Osawa T.
    Laboratory of Theriogenology, Iwate University
  • Ohtsu S.
    JA Zennoh-Iwate
  • Suzuki K.
    Iwate A.M.A.A.,
  • Sononaka A.
    Nanbu Clinical Center, Chushin A.M.A.A.,
  • Takoh M.
    Iwate Hokubu A.M.A.A.,
  • Morita Y.
    Tanko A.M.A.A.,
  • Ohta D.
    Laboratory of Theriogenology, Iwate University Tokachi NOSAI A.M.A.A.,
  • Takahashi M.
    Technical Research Center, Koiwai Noboku Co. Ltd.

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Other Title
  • 血中プロジェステロン（Ｐ４）濃度からみた牛の卵胞嚢腫および卵巣静止における診断精度の評価
  • ケッチュウ プロジェステロン P4 ノウド カラ ミタ ウシ ノ ランホウ ノウシュ オヨビ ランソウ セイシ ニ オケル シンダン セイド ノ ヒョウカ

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Abstract

The accuracy of the diagnosis of follicular cyst and ovarian quiescence by rectal palpation was estimated from the peripheral blood progesterone (P4) level at a first examination and a second examination 7-14 days later, in dairy cows and Black Japanese beef cattle. Twentyseven (69.2%) out of 39 cows diagnosed with follicular cyst and 24 (60.0%) out of 40 diagnosed with ovarian quiescence had low P4 (<1.0ng/ml) at both examinations. Four (10.3%) cows with follicular cyst and 8 (20.0%) with ovarian quiescence had low P4 at the first examination, but high P4 (>1.0ng/ml) at the second examination. The remaining 8 (20.5%) cases with follicular cyst and 8 (20.0%) with ovarian quiescence had high P4 at the first examination. The results suggest that, in the diagnosis and treatment of ovarian diseases, the measurement of peripheral blood P4 could become a supplementary means of accurate diagnosis and treatment of these two diseases.

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