Respiratory Disease (CRD, MG, IB)

Common backyard respiratory diseases include Chronic Respiratory Disease (Mycoplasma gallisepticum), Infectious Bronchitis, and Infectious Coryza. Signs: sneezing, nasal discharge, swollen face, wheezing, drop in egg production. Many are carriers for life once infected — never introduce new birds without 30-day quarantine. Improve ventilation (most respiratory issues stem from ammonia buildup) and consult a poultry vet for antibiotics if needed.