Purina I think makes a version of it. Other members mention that they feed it too, so there must be other brands. Mine I get at Fleet Farm which is regional to the Midwest. I like that it's a higher protein so I can feed some scratch to my birds without worrying about deficiencies.
I also have noticed my roosters live longer not consuming layer. I gave up using layer a few years ago and my flock is better off for it. I also don't see weird shelled eggs anymore either. I think sometimes they get too much calcium from layer, especially if they don't lay constantly.
I also have noticed my roosters live longer not consuming layer. I gave up using layer a few years ago and my flock is better off for it. I also don't see weird shelled eggs anymore either. I think sometimes they get too much calcium from layer, especially if they don't lay constantly.