I really don’t know an answer, but I looked up this link which you can believe or not:
https://poultrydvm.com/supplement/purple-coneflower
The best way to prevent diseases is to buy healthy chicks from a hatchery or feed store. Don’t add them to other chickens who have come from somewhere else. Provide good overhead ventilation and prevent dust, ammonia odors, and do not bring in birds from other places. Once you have a chronic respiratory disease, it will remain until the last of birds die off.
https://poultrydvm.com/supplement/purple-coneflower
The best way to prevent diseases is to buy healthy chicks from a hatchery or feed store. Don’t add them to other chickens who have come from somewhere else. Provide good overhead ventilation and prevent dust, ammonia odors, and do not bring in birds from other places. Once you have a chronic respiratory disease, it will remain until the last of birds die off.
