Since the first live foal produced by embryo transfer was born in 1974, the procedure has become one of the most popular assisted reproduction options for breeders with mares who are valuable or for mares that are to remain in competition. According to McCue, a majority of embryo flush procedures are attempted at Day 7 or 8 after ovulation. Flushes may be performed on day 6 or early on day 7 in

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