Welcome to Oregon! I saw your earlier post about frozen water. I am dealing with that too!
I use 1 cup Northwest Horse Supplement, 2 cups whole oats, and 1/2 cup whole flax seed daily. I'm trying to keep my feed as natural as possible. The rest of their diet is forage on our dry pasture, which honestly is lots of foxtails, timothy and weeds. But it keeps 'em well fed!
NWH only requires 1 cup per day and is made in and formulated specifically for Oregon. It uses a form of magnesium and selenium that is easily metabolized by the horse. My horses love it and yum it up. Northwest Horse Supplement by Nutritional Services Inc. Posted via Mobile Device