I have 15 chickens, 13 are hens, 3 are roos. All are about 4 1/2 months old. I feed them 2 qts of scratch a day, and I keep a feeder filled with layer pellets. They are kept in a pen most of the time so there is no fresh grass in it. I supplement them with table scraps or fresh greens 2-3 times a week and let them out to forage once a week when I clean out their pen. Because of where I live I can not let them free range more than this. They wait at the pen door for me everytime I go outside, begging for more scratch. The roos even start crowing when I go out! But they are slow to eat the layer pellets. They look healthy and are active, but I am far from an expert. Thanks for any input you have!