Cryopreservation of ICSI embryos involves the vitrification of embryos, a rapid freezing technique that transitions the embryo into a glass-like state without the formation of ice crystals, which can damage delicate cellular structures. The embryos are suspended in a cryoprotectant solution and then plunged into liquid nitrogen. This method of preservation is particularly advantageous for ICSI embryos due to their size and stage of development, which have higher success rates.

The significance of this technology extends beyond convenience; it is a pivotal tool in the quest to overcome the reproductive challenges that affect horses. By cryopreserving ICSI embryos, the time of transfer and finding the best recipient mare is more manageable for breeders, ensuring that each viable embryo has the best chance of developing into a healthy pregnancy. Devitrification or thawing of embryos has a success rate of 80-90% with similar pregnancy rates to traditional ICSI embryos. Equine reproduction is entering a new era, where the birth of a champion horse can be planned with precision and foresight, and Genetech is ready to offer this to its clients.