I would appreciate any help, thank you! My hens are slowing dieing from something. They limp and it progresses to where they won't move. We have lost 3 to this and another is sick.i don't think it is mareks. We took our first one to the vet last year and she said that the hen had leukemia or brain problems. She wasn't eating either. They use one leg and one wing to get around. The one we have right now is just starting. Thank you!