I thought there wa a protocol for delaying the time for them to come in foal heat by a few days --allowing the mare to recover a few more days which dramatically increased the success rate for pregancy when breeding on the foal heat. Maybe kathy will comment? here is from the website.
We wait for the 30 day heat. I feel like the mares are still healing and cleaning out on the foal heat and it really isn’t that much of a wait till 30 days. Plus it keeps them on a consistent schedule. We have had very good luck with the 30 day heat using 1 dose of frozen.
I do many times but not if my mare doesn’t culture clean or has issues. Also, not if I am paying a bunch of money or if the baby has to go somewhere.