I had a cochin bantam come from ideal hatchery this winter, and about 2 months later he started walking funny his legs were spread apart. he wouldn't eat or drink , he couldn't walk at all barely scoot. I've had numerous other chicks come down with it as well. is this mareks? If not what can I do to help! I'm hatching my very first batch of my own eggs and I don't want to lose them too.