The surgical fixation of catheters in the uterine horns of superovulated cows for the collection of ova.

The surgical technique for ova collection can result in adhesions leading to impaired fertility of the donor cows. On the other hand, lower ova recovery rates have been recorded with the non-surgical technique (Baker and Jillella 1978). There are no published reports on the collection of ova by the surgical fixation of catheters in the uterine horns of donor cows. In this experiment, attempts were made to collect ova and record ovarian response from superovulated cows by surgically fixing an indwelling balloon catheter in the lumen of one or both uterine horns.