Farm Animals

Chicken Litter Ammonia and Respiratory Health

Ammonia accumulation in broiler chicken houses from litter decomposition is one of the leading welfare concerns in intensive poultry production, causing respiratory damage and eye problems.

Key Facts

Ammonia is produced when bacteria break down uric acid in accumulated litter
Concentrations above 25 ppm are considered harmful to poultry welfare
Respiratory inflammation, tracheal damage, and airsacculitis are documented effects
Eye irritation and blindness can result from sustained high ammonia exposure
Litter management practices such as turning, drying, and timely removal significantly reduce ammonia levels

Welfare Considerations

Chronic ammonia exposure represents a silent welfare crisis in many poultry operations, affecting birds throughout their lives. Because damage accumulates gradually, it is often normalized in production settings. Effective management - including adequate ventilation, reduced stocking density, and timely litter replacement - can dramatically improve bird health and welfare without compromising economic viability.

What You Can Do

Advocate for mandatory ammonia monitoring and maximum concentration limits in poultry facilities
Support poultry welfare certification schemes that audit litter management
Choose poultry products with welfare certifications that include air quality standards
Encourage research into litter additives and management practices that reduce ammonia