I disagree with that article. Amprollium mimics thiamine in the coccidia organism, to cause the coccidia organism to take that, and then the coccidia will become deficient and die. There is very little amprollium in medicated feed anyway, and I stopped using that years ago. Any feed that your...
Yes, that sounds like wry neck/torticolis. Some may also walk backwards or in circles. It can be a neurological symptom of a head or neck injury, a vitamin E or thiamine deficiency, and in older chickens diseases that can affect the brain. There is no reason to avoid thiamine (vitamin B 1) if...