At home, Baby Girl gets 24/7 weed lot --err, pasture-- access. She two quarts of Strategy once daily, with powered MSM and a pelleted joint supplement (Next Level).
At rides, she gets two quarts of Strategy in the morning along with three (measured dry) cups of beet pulp, soaked over night. Mixed that all up and add Apple-a-Day 'lytes (amount depending on conditions). Molasses is added for taste.
At night, same deal, expect supplements are added (she is more likely to eat it all at night) and she gets slightly more food if she'll eat it.
Hay. Free choice, all the time. She sometimes decides she hates her hay and will only eat other people's. I trade flakes with my neighbors. Their horses usually like different hay better too.
During holds, she gets more hay and beat pulp, if she feels like touching it.
I had a friend ride her once. I didn't let them feed her; momma had to do it.
I have it down to a science.
And her favorite trail snack is young bamboo. Won't touch an apple or carrot, but loves bamboo.