منابع مشابه
A Survey of Pathogenic Avian Mycoplasma Involvement in Multicausal Respiratory Disease in Broiler Flocks
BACKGROUND: Mycoplasma gallisepticum (MG) and Mycoplasma synoviae (MS) are the most important and pathogenic mycoplasma in chicken production. The tendency of avian mycoplasma for interaction with other pathogen is well-known. Interaction within several disease-producing factors in respiratory tract exacerbate the disease and known as multicausal respiratory disease. OBJECTIVES: In recent years...
متن کاملAvian Respiratory Diseases
Anatomy and Physiology The avian respiratory tract is substantially different and much more efficient compared to mammals. The upper respiratory tract in birds is characterized by an extensive infraorbital sinus, a choana, and a larynx that is lacking an epiglottis. In addition, the larynx is not used for voice production in birds; instead, this occurs in the syrinx. The trachea in birds is com...
متن کاملBK Polyomavirus in Respiratory Specimens of Patients with Respiratory Disease
Background and Aims: The role of BK and JC polyomaviruses (BKV and JCV) in the causation of respiratory disease and the natural route of transmission has not well been established. The aim of study was to determine the prevalence of BK and JC viruses in 280 respiratory samples and evaluate their contribution to respiratory disease. Materials and Methods: PCR was used to screen specimens for BK...
متن کاملSurgery of the avian respiratory system.
The avian respiratory system is different from that of mammals. Although some surgical techniques can be adapted from those used in mammals, many are unique to avian patients (e.g., choanal atresia correction and air sac cannulation). This article reviews the common surgeries of the upper and lower respiratory systems and describes surgical techniques for the treatment of chronic sinusitis and ...
متن کاملDetection of Newcastle disease, H9N2 avian influenza, and infectious bronchitis viruses in respiratory diseases in backyard chickens in Ahvaz, Iran, in 2014-2015
Newcastle disease virus (NDV), avian influenza virus (AIV), and infectious bronchitis virus (IBV) are the most prevalent viral pathogens in the Iranian poultry industry. This study aimed to reveal the presence of these viruses in the backyard chickens in Ahvaz, located in the Southwest of Iran. A total of 100 chickens with respiratory signs and mortality were examined by taking the blood sample...
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ژورنال
عنوان ژورنال: Veterinary Quarterly
سال: 1998
ISSN: 0165-2176,1875-5941
DOI: 10.1080/01652176.1998.10807420