Were the eggs you hatched from your chickens or ones that you bought? MG is one disease that can pass through a hatching egg. Changes in temps sure can affect chickens and behavior. Ventilation and prevention of dust, mold, and ammonia odors can affect them, bringing about respiratory symptoms. Just watch for any of the symptoms listed above. Vet Rx is an herbal oil old fashioned remedy that may not do much more than Vicks. ACV is not harmful in small amounts, but it really is not necessary, nor will it prevent anything.
