Check out Edible Acres youtube channel. They have a chicken system where they plant shrubs and veggies in their chicken areas with protection so the chickens can eat the berries, or whatever, but not scratch up the
roots and thus kill the shrubs/trees/whatever.
I
think they also use a sprouting in the field system to
feed them (or maybe that was someone else.)
I may watch too many youtube vids on chicken systems...