Hydration

["guest@endurance.net" <guest@endurance.net>]

JD aufever303@msn.com
Hello,
I have a 5 year old horse that I am conditioning for endurance riding. We rode (and completed) 3 limited distance events last year and he finished with all "A's" in each event. My concern is that when he gets excited he tends to get the "runs". He drinks very well on the trail, but I am still worried that having the "runs" will serve to dehydrate him too much when we start doing 50's.

Are there any dietary suppliments that I can remedy this with, or could it be something more serious?

Kind Regards, JD