Retrospective study of causes of respiratory infections in broiler chickens which presented to Babylon veterinary hospital during 2012


The object of this study to diagnosis the causes of respiratory infection in broiler chickens which prevalence in Babylon province during 2012, the diagnosis is depending on case history, clinical signs, postmortem lesion and confirmed by rapid diagnostic kit and enzyme linked immunosorbant assay (ELISA), the results show the causes of respiratory infection are (infectious bronchitis (IB), Newcastle disease(ND), avian influenza(AI) and chronic respiratory disease(CRD) in percentage (29.7, 27.9, 25.2 and 17) respectively . In conclusion of this study that respiratory infections are the major threaten for poultry industry in Babylon and poor biosecurity are major predisposing factors for this diseases.