this link is for production birds not dual purpose and is the minimums.. my birds do better on higher protein...I was thinking the and grains would mimic their natural diet. Of course my chickens are not exactly wild animals - they are very domesticated birds. I just think that a more natural feed option is better than processed pelleted food. I also make sure that my hens have plenty of access to wild plants (weeds). The devour just about any plant they can get access to. I'd say that wild plant matter (an armful every day or two) and the fermented feed mixture (1 quart per day) are the staples of their diet currently. So far the only things we considered treats were frozen chunks of watermelon and left over corn cobs. The corn cobs (rinsed to remove any butter and seasoning) being the only table scraps the birds have yet to have. I will be sure to do some research on the seeds and grains though and make sure we are providing a well balanced diet.
show people have show bird formulas that is higher than this link.
https://www.nap.edu/read/2114/chapter/4
also a member share a reciped he uses