Studies on the ova transfer in cattle, with special reference to a successful transplantation by means of non-surgical techniques (Preliminary Report)
1965 Volume 10 Issue 4 Pages 124-127
Details
1965 Volume 10 Issue 4 Pages 124-127
Two Holstein heifers were superovulated by the administration of gonadotropins, PMS and HCG, to donate the fertilized ova for the ova transplantation in cattle.
From one of the donors, a morula stage embryo was collected using non-surgical technique and three ova were recovered from another one following the slaughter.
The morula embryo from the former donor and an 8 cell ovum from the latter, were transferred non-surgically into the uterine horn of two recipient heifers individually, using specially designed apparatus for the ova transfer in cattle. Both of the recipients conceived following the trial.
A normal bull calf was born 268 days after transfer of the morula stage embryo. It was confirmed by the blood typing test that the calf originated from the transferred embryo. Another recipient aborted at the 80th day of pregnancy.
