Several folks have mentioned feeding "oats" to their chickens. Is oatmeal what they are speaking about or oats that you feed to horses the same thing? Seems like it would be much more economical to buy the large bag of horse oats if they don't go bad. I'm feeding the layer pellets, calcium, grit and some scratch feed and the chickens also free range unless there is too much snow on the ground, but seems like they are burning up more than they are taking in, and they feel on the light side to me. Still laying well and acting normal, but wondered what else I might feed them to keep their weight on. Any suggestions?? Thanks!