I have a 3 day old Polish chick that I first thought had splayed legs so braced. But it just keeps sitting on its hocks. Any other time I’ve had a baby with splayed legs, after bracing the usually show marked improvement. This one is not. I just started dipping its beak in some poultry cell and egg yolk. It doesn’t seem to want to eat on its own either. Do you think this is a niacin deficiency? I took the leg brace off. Should I also keep it on?