Female: diestral ovulation

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  • Ovulation in the presence of a functioning corpus luteum, without signs of estrus, is relatively common in cycling mares.
  • Diestral ovulations may occur between days 2 and 15 of the luteal phase.
  • These ovulations are frequently detected if mares in diestrus are examined regularly.
  • Ovulation during diestrus can prolong diestrus.


Differential diagnosis

  • Prolonged diestrus.



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