Lazy J Farms Feed & Hay :
Regardless of what the protein content of the corn is, it does not overcome the fact that corn is a POOR source of protein for monogastrics (i.e. chickens and pigs). It contains a low level of Lysine which is the most important amino acid in growing chicks and pigs. NO matter how much corn you provide to the chick you will NOT have engough lysine to utilize the 'protein' in the corn.
Without a doubt the protein in the corn is utilized by the animal, however it must be supplemented with a true protein source such as soybean meal, fish meal, or another legume see meal.
Depends on how the corn is processed. Soaking the corn at high pH hydrolyzes the lysine and some B vitamins. But yes, plain dried #2 corn is not sufficient. I agree that you're going to have to supplement anyway--around here they use fish meal as a supplement since we're close to the coast and the fish processors, and the quantity of fish meal that you have to use to bring the total to 18% is such that there would be all the lysine needed and then some. But I can see if you're using soybeans that would be a problem.
You know what, I am surprised more mills don't use sunflower pomace. High in protein, high in vitamins, grows most places (even Siberia!), yields twice as much oil/acre and the most oil/acre that you'd get out of any temperate climate oil crop (not as much as tropical climate crops tho'). Can be made into pretty much anything you'd make peanuts into--nut butter, mixed in cereal, cooking oil, etc. I haven't tried to make tofu out of sunflower seeds, but it's something to try.
Can be harvested with any ordinary combine for wheat or row crops. The thing is, you can sell veggie oil for a lot more than you'd get for feed meal or flour, so if you're going to grow a crop that will be dual-purpose (oil + feed), it seems like sunflowers are a better deal economically than either soy or corn.
Just sayin'. Earlier this year I was figuring out what to plant in test plots for the critters, and at this point we can only see the economics of growing sweet and pop corn for human consumption. When it came to test plots for critter feed, a mix of native American grains, sunflowers and greens won out in nutrition and hardiness.