Short answer: I DON'T!
I do spend a bit on high quality feed, but I also have a chicken yard with a mix of pasture grasses and other things where they forage for about half of the time. They get lots of bugs and worms and frogs that way, too. I also ferment 2-3x a week.

I do spend a bit on high quality feed, but I also have a chicken yard with a mix of pasture grasses and other things where they forage for about half of the time. They get lots of bugs and worms and frogs that way, too. I also ferment 2-3x a week.