Fig. 3.

Ovaries of the recipients at the time of ET. (A~D) Ovaries from full-term delivered recipients. (E~H) Ovaries from aborted pregnancy animals. (I~L) Ovaries from recipients that experienced implantation failure. Non-ovulated follicles were detected even in recipients that successfully delivered offspring (D). While ovulated follicles were commonly detected in the aborted and implantation-failure groups, non-ovulated follicles were also found in the aborted (E, F, and G) and implantation-failure animals (I, J and L). White arrows indicate the non-ovulated follicles.