To make a truly balanced feed with all the energy, vitamin, and mineral needs included actually costs more than buying commercial. I've looked into it. PLUS the vitamin pre-mix you need expires much faster than a private entity can use it, as it only comes in 50lb bags. It's just not worth it.
Mosey is so right! Chicken feed is CHEAP, even the good stuff!
Buying eggs and meat from the grocery store will be cheaper than growing your own, for several reasons, so, for cheap, do that.
Mary