It really depends on where I go and what time of year.
Summer in the high country, I let the horse graze. I try to give them at least one hour in the morning and one hour in the eveing of grazing. I never grain my horses at home, But I do bring some grain on extendpack trips. The are working hard and never have enough time to graze enough feed. So I usually bring some. Put a layer of eggs in a Tupperware bowl, Cover in grain, put in another layer and cover in grain until the bowl is full. Snap on the lid. The grain prevents the eggs from breaking during the pack trip in and my horses get to eat the grain. If an egg breaks, my horses get a little extra protien.
Spring Rides in the desert, don't offer much from grazing. The horses could find enough if I just turned them loose. But the old saying is that it takes 300 acres of desert to feed a cow. I don't want my horses wandering that far off. So I always bring my own feed, and we typically camp at the trailer. I feed the horses in haynets or plastic tubs at the trailer
Summer trips we allow the horses to graze. In fact I often bring a roll of hot wire and section off large meadows and turn the horses out. By making the space large enough the Alpha horses won't beat up on the beta horses. It gives them room to get away from the other horses with out running through the fence. Here we have 19 horses in a meadow grazing while we set up camp
We typically set the fence up to include some water. But the Forest Service gave us a ticket last summer for that practice. The new rules say that any structure we stand ( which usually ment tents) has to be 200 yards away from any water. They interepet our fence as being a structure and ticket us.
I never leave the horses in the hot wire pasture over night. Deer and elk run thru it and the horse are loose.
We also try to include some trees in the enclosure so the horses can have shade or get out of the wind or storms. You can barely see the white fiberglass rod we set the hot wire up on the left
If I don't set up a hot wire, I at least hobble the horses and turn them out for an hour to graze
More later when I get some more time