Thirty inovulations of bovine ova were conducted. Superovulated ova as well as ova from single points of ovulation were transferred by both surgical and non-surgical means to synchronized and non-synchronized recipients. Two transfers entailed the use of follicular ova.
None of fourteen non-surgical transfers, made via the cervix or via the rectum, definitely resulted in pregnancy, nor did twelve transfers conducted by depositing ova within the peritoneal cavities of selected hosts.
One of four transfers, conducted by means of laparotomy, resulted in pregnancy and terminated in the full term birth of a 98-lb bull calf.
If the inline PDF is not rendering correctly, you can download the PDF file here.