home made whole grains

I keep hearing about chicken owners, especially farmers who sell eggs bragging that their fully pastured chickens don't eat commercial feed but rather a specific blend of grains, sort of like custom scratch grains. The problem is that every time I try to find books about how to formulate chicken...

Ok, so I have found soooo many recipes online for home made chicken feed. I have quite a few ingredients but not all ingredients of each recipe I find. If there is anyone out there that can help me with how much of each of the following ingredients that would be awesome! Thanks in advance if...