The researchers at the Univeristy of Wisconsin have been pioneers in IVF technology. Donors Presently, donor cattle must be dry to be housed at the Arlington facility. They can also be transported to the laboratory on the day of collection. In the case of terminal or immobile donors, the ovaries may be removed and shipped to the laboratory for subsequent embryo production. Beef and Dairy donor cows are welcome.
Suction is applied to retrieve the egg along with the fluid.
This procedure can be performed once a week without reproductive harm to the donor. The collected ova are matured for one day, fertilized with a sire of the owner's choice, and then cultured in an incubator for about seven days. Appropriate embryos are then transferred into quality recipients. As with conventional embryo transfer, donors are highly variable in oocyte and embryo production. On average, however, a collection yields eight immature ova, resulting in about one transferable embryo and a 50 percent pregnancy rate.