Chicken respiratory infection can easily spread to the chicken abdominal viscera and even the whole body,once the tracheal, bronchial mucosa cilia system, alveolar macrophages engulf system damage, chicken respiratory disease will occur.
1. Environmental factors: refers to the birds and health status, poultry and well ventilated, fresh air, less chance of the disease.Air pollution and harmful gas (ammonia, hydrogen sulfide, etc.) content is high, easy to cause respiratory diseases.Dust is the carrier of carrying pathogen in the air, dust mainly include the dust, the chicken body off scurfy, etc.
2.Biological factors: biological factors include viruses, bacteria, mold, parasites, etc., such as bird flu virus, of poison, infectious bronchitis virus, infectious laryngotracheitis virus, e. coli, mycoplasma, mold and some parasites, etc.
3. Chicken anatomical characteristics of the respiratory system is also important factors lead to disease, pathogenic microorganisms to the trachea, lung directly into the air, this is the airbag inflammation, chicken liver, peritonitis and cp much more special and serious reason.
4. Raising management factors: the crowd density is too large, malnutrition and so on also can cause respiratory disease.
5. The climate factors: climate change, wind, temperature and so on often induce respiratory diseases.
The characteristics of the chicken respiratory system also is the main factor that cause disease, pathogenic microorganisms to the trachea, lung directly into the air, this is the airbag inflammation, chicken liver, peritonitis and cp much more special and serious reason.