Ok, so my little flock went through a bout of respiratory problems, and after losing two of them, they seem to be past it for now. My lavender Orpington roo has made it through, but he is worse for wear. It seems to me that at almost 6 months, he should weigh a lot more. He eats good, but I think I'd like to help him out. Does anyone have any ideas for packing on some weight?