Protein Content Of Various Grains

Ingredient	Percent protein
Dried fish flakes	76
Dried liver	76
Dried earthworms	76
Duckweed	50
Torula yeast	50
Brewers yeast	39
Soybeans (dry roasted)	37
Flaxseed	37
Alfalfa seed	35
Beef, lean	28
Earthworms	28
Fish	28
Sunflower seeds	26.3
Wheat germ	25
Peas and beans, dried	24.5
Sesame seed	19.3
Soybeans (boiled)	17
Wheat bran and/or middlings	16.6
Oats, whole	14
Rice polish	12.8
Rye	12.5
Wheat	12.5
Barley	12.3
Oats	12
Corn	9
Millet	9
Milo	9
Rice, brown	7.5
Milk	3
Whey	29 - 89

I pulled this chart off of a web site that sells chicken waterers and other products: http://www.avianaquamiser.com/posts/Protein_content_in_chicken_feed_ingredients/

It is a good, handy chart to use as you develop your own feed mix. However, NEVER forget the vitamin/mineral pre-mix!