posted 8 years ago
We use a custom non-GMO mix for a variety of table birds (chickens, guineas, ducks, Muscovies, turkeys, geese) that consists of:
29% corn
26% field peas
25% wheat
15% oats
5% sunflower seeds
This gets us somewhere in the ballpark of 15% protein. We add alfalfa meal and fish meal to boost the protein as needed while the birds are in the brooder.
The ration seems to be working pretty well for us because 1) slow-growing/heritage breed genetics means our birds have less strict requirements, and 2) free-ranging our birds on pasture means they can pick up additional protein (among other things) as needed.
We (mostly) ferment the feed, which is said to increase the protein and vitamin/mineral availability, effectively giving you a better ration, though I've yet to try any side-by-side comparisons. (That's on the table for next year.)
Keep in mind there are inclusion limits on a number of feed ration components. I have a nice PDF titled (I think) Pastured Poultry Nutrition from the Fertrell Company that goes into great detail, though it is mostly geared toward the Cornish-Rock Cross. I don't know to what extent, if any, fermentation affects those inclusion limits.
Harvey Ussery suggests that, if your feed mix is diverse enough, as long as you ensure adequate protein everything else will more or less fall into place. Sounds good to me.
You didn't ask, but I'll volunteer anyway. You might reconsider the sort of "maximum production because of a commercial scale" concept. Could be that accepting a lower yield per bird/flock would work out, if there was a commensurate lowering of input costs, and perhaps a lengthening of your hens' productive lives. Often enough, it seems, one can accept a lower gross sales number while keeping net sales more or less steady. Speaking from experience (and very favorable comments from customers), this will probably give you a higher quality egg to boot, which may very well make sales that much easier. Something to think about, anyway.