What is the success rate of retrieving an embryo and having the recipient mare be pregnant?
There are many variables that pertain to retrieving an embryo. If the mare is of breeding soundness (no infections, cervical tears etc.), and the stallion has good quality semen and is fertile, then the average is 50% of the time we get embryos. If youre using frozen semen the percentage can drop a little. When we get an embryo, the average pregnancy rate is at a 12-day check: 80% about 72% will go home to owners at 45 days. For frozen embryos it is a 66% pregnancy rate.
