Has anyone ever fed their chickens yeast as a protein source? Do you know of any problems in doing so? Any thoughts or advice will be greatly appreciated. I have a molting roo that is not allowing his own new feather growth to come in. He keeps eating them as they are coming in. I have been feeding him salmon cat food, lentils, and layer pellets while he is in the pen, but actually all he wants to eat is corn. It was suggested I sprinkle yeast on the corn and see if he will eat that. Again, any ideas or comments?