When I went out today to give treatment to all my young hens and roos I found one that before showed no symptoms of the disease MG unlike my other chickens that have the symptoms. But, it looks like it just up and died. No bite marks no bleeding no signs of death. My only predictions are it died from stress, or heat exhaustion because of the hot weather right now in florida. But we have 2 water jugs in the pen with them? Help!!!