The emerging use of the ICSI (intracytoplasmic sperm injection) procedure in recent years has made this technique increasingly popular among breeders. ICSI candidates are managed at Royal Vista Ranch and then taken to Royal Vista Southwest for the aspiration of oocytes. Those oocytes are then sent to an ICSI lab that the mare owner has selected for maturation and injection. If an embryo or embryos are produced during this process they can be sent back to Royal Vista Southwest for transfer or frozen for use at a later time. This technology is proving to be a very valuable tool as an addition to assisted reproductive techniques.