Poultry Respiratory Pathogens
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14 Terms
Most health or production problems in a poultry house are attributed to...
Feed
Lighting
Litter
Air quality
Water
Sanitation
Caked poultry litter is indicative of...
Excess moisture
What is the desirable level of ammonia (NH₃) in a poultry house?
Below 10 ppm
What level of ammonia is detectable by humans?
25 ppm
What concentration of ammonia (NH₃) is considered lethal to poultry?
Above 500 ppm
What oxygen (O₂) level is considered lethal for poultry?
Below 6%
Desirable oxygen level
Above 16%
Lethal level of CO2
Above 30%
Desirable level of CO2
Below 1%
Which pathogen is most commonly associated with air sacculitis in poultry?
E. coli
Why are avian air sacs particularly prone to inflammation?
They receive direct airflow from the trachea and contain few anti-inflammatory cells
Air sacs are prone to inflammation caused by...
Pathogens
Dust
Ammonia
How do excessive dust and ammonia contribute to air sacculitis?
They damage tracheal cilia and increase mucus production, impairing clearance of pathogens
Pathogenesis of air sacculitis
Air sacs thicken
Accumulate caseous material
Deposition of fibrin
Neovascularization