Number of recipient and control mares and foals with sex ratio within the five groups.

All mares were pregnant and delivered one foal, so mare numbers are the same as foal numbers.(P-P: Pony in Pony, P-D: Pony in Draft, S-P: Saddlebred in Pony, S-S: Saddlebred in Saddlebred, S-D: Saddlebred in Draft).