Ammonia buildup from poultry manure in factory farms causes painful respiratory disease and eye damage in chickens and turkeys.
Poultry living in high-ammonia environments develop painful chemical burns to their respiratory tracts, eye ulcers that can lead to blindness, and severe footpad lesions that impair mobility. The pain from ammonia exposure is significant and chronic. Poorly ventilated sheds cause suffering that is invisible to consumers but affects billions of birds.