Treatments resulting in pregnancy in nonovulating, hormone-treated oocyte recipient mares. Academic Article uri icon


  • Synchronization of follicle growth between oocyte donor and recipient mares is difficult. To avoid this, recipient mares in a clinical program were used during a period of low follicular activity, and were treated with estrogen before transfer and progesterone after transfer. Five pregnancies were established after oocyte transfer to nonovulating, hormone-treated recipient mares. One pregnancy was lost before 30 d gestation, and the other 4 foals were carried to term. One foal died at birth. Establishment and maintenance of pregnancy in these mares indicates that nonovulating, hormone-treated mares may offer an alternative to cyclic recipients in oocyte transfer programs.

published proceedings

  • Theriogenology

author list (cited authors)

  • Hinrichs, K., Provost, P. J., & Torello, E. M.

citation count

  • 19

complete list of authors

  • Hinrichs, K||Provost, PJ||Torello, EM

publication date

  • January 2000