Rapid transport of alien eggs transplanted 66 hours post coitum in the oviduct of the rabbit.

Alien (fixed and stained) rabbit ova were transferred into the oviduct of recipient rabbits 24, 48, 60, and 66 hours post-coitum and were observed at 48, 72, 72, and 72 hours post-coitum respectively, using a clearing technique. In all cases the transport of alien eggs was accelerated, so they caught up with native eggs. Alien eggs, transferred to the ampulla 66 hours post-coitum were transported to the uterus within six hours.