Lots of people try to mix their own. Generally it ends poorly.I’m paying $24 for 50# of non-GMO layer mash from a nearby feed mill, and my chickens love it. However, I’ve been thinking about starting to mix my own. Anyone ever tried that? I don’t try to overthink this stuff…after all, they are chickens, and they could literally thrive on kitchen scraps and foraging in my yard and woods. But I’m thinking of mixing their feed supplement, in light of the recent Tractor Supply chicken feed shenanigans…don’t know if I want to chance it with pre-mixed feed.
Most local mills won't mix for you unless you are doing it tons at a time, so you can't count on enjoying their efficiencies of scale in pricing.
Chickens can literally LIVE on kitchen scraps, foraging, and sufficient woods/pasture in some environments - most of which already have established feral flocks. Chickens do not THRIVE in such environments. Those words have very different meanings.