As I understand it, you do not have to completely
give up some supplement you feel your horse needs, that might contain Yucca,
just stop feeding it so many days before your AERC rides. I thought it takes 72
hours to clear the system, I'm sure Heidi or someone could correct me if that is
wrong. So feed it, just stop before the ride, and start after the ride. Unless
you get to as many rides as Karen Chaton, should not make a difference to start
and stop ;-)
