I picked up some Manna Pro starter Gamebird/Showbird, 24% protein, 3% fat, 5% fiber, 1.5% calcium. Highest protein I have seen! My other chickens seem so small to me now that I was out at someones farm the other evening to pick up some eggs, and they have some BEAUTIFUL breeds, amazing breed stock, their hens/roosters were HUGE compared to my Ameracauna, and 2 red sex links. Guy told me they start them on Blue seal I believe, but said 22% protein then once they are grown they go to a 19% crumble. Mine had been started on 19% and now have been steady eating 16%. By the way he makes it seem, it makes a huge difference in growth. Plus I had been getting what they loaded up for me at the local feed store when I would come in and ask for a 50lb bag of layer crumbles, turns out its Purina(and I am now noticing that Purina gets NO LOVE as far as a quality feed on this site). So I am trying something new for starter crumbles and then when the current bag of layer crumbles get low, I will never be buying Purinsa again.