International journal of fertility vol:31 issue:5 pages:372-6
The effect of tubal surgery upon early embryonic development in the rabbit oviduct was studied. Resection-reanastomosis was performed applying microsurgical techniques. Embryonic cleavage stages were recorded in the surgically altered oviduct, in the contralateral nonoperated tube, and in the tubes of nonoperated control animals. Higher cleavage rates were found in the operated animals compared with nonoperated controls. Early embryonic development was enhanced in both the operated tube and the contralateral nonoperated tube. These findings suggest an embryonic cleavage promoting factor to be active in the operated animals. This factor seems to affect not only the operated tube, but the contralateral control tube as well.