Embryo Transfer
Embryo transfer in horses is becoming an increasingly popular way to breed performance horses.
The process of collection of an embryo from a donor and the transfer to a recipient is generally referred to as embryo transfer (ET). Multiple embryo transfers can be performed on one donor mare during a breeding season.
ET also often involves the technology of freezing and thawing of embryos, for which there is a large body of published techniques. Embryos may be transferred shortly after collection (fresh transfer), held cooled for a short period (a few hours or overnight) or frozen after collection for thawing and transfer at a later date.