Right now my chickens are getting a mix of homemade and commercial to make sure they get everything they need while they're still growing, but I plan on phasing it out after my current bag. To be honest they don't seem to eat much of the commercial anyway and I think most of it ends up thrown onto the ground or left in their bowl, so I take that as a sign they're doing okay with just the homemade. I based my recipe off
this one, but changed it slightly to fit what's available in my area because shipping from Azure Standard would be too expensive for me. I also cut back on the sesame because I noticed my guys were leaving a lot of those behind. I've bracketed anything that would need replacing (I noticed you had oats in your recipe, so I'm assuming you're okay with oats and left that in).
4 cups oats
4 cups black oil sunflower seeds
6 cups (wheat)
2 cups buckwheat
2 cups (barley)
2 cups millet
1 cup sesame seeds
1 cup flax seeds
1/2 cup brewer's yeast
1/4 cup kelp granules
Free-choice oyster/eggshell and grit