If they have done progesterone testing and know she is ready to be bred once is enough. If not, I'd have the girl stay and do 3 breedings, one every other day. Two in one day is no better than one in one day, except that if he has not been bred in 2 mos the first ejaculate might not have as many strong, viable sperm in it since they have been "sitting around" for a few months. It really is not a matter of how many breedings but a matter of timing. If you don't know if the timing is correct via bloodwork then you need to breed multiple times to try to cover the potentially fertile period. Yes, you might get lucky and it will take, but if it were my bitch I would not chance it. This is particularly important if it is her first breeding because at 4 they are starting a bit late and should try to avoid waiting for another heat cycle. |