Suggested diet for jap quail by the university of A&M
Keep in mind they recommend 20% protien minimum in the article, and tbat was 40 years ago when jumbo coturnix didnt even exist.
I dont just make this stuff up and i didnt hear it from pa kettle on his little quail farm. As far as hatching 20k chicks, ive easily hatched that many in the last few years. It doesnt impress me.