The livestock disease caused by a fungus is called aspergillosis. This disease is caused by a fungus called Aspergillus, which can grow on feed and bedding material. Livestock can inhale the spores of the fungus, which can then infect their lungs and respiratory system. Aspergillosis can affect various animals including cattle, pigs, poultry, and sheep. Common symptoms of this disease include difficulty breathing, coughing, weight loss, and decreased appetite. Treatment for aspergillosis may include antifungal medication and improved ventilation and hygiene practices in the animal's living environment.