Hayom tisha u'sheloshim yom, shehaym chamisha shavuot va'arbaa yamim baomer

Many people who have visited factory farms say that the smell is beyond people's worst nightmares. Chickens may be confined to huge sheds by the tens of thousands, and cleaning the sheds while the animals are inside isn't cost-effective. The ammonia from animals' excrement builds up, and the stench becomes unbearable. The ammonia can burn birds' skin and cause lung damage. Says one Washington Post writer, "Dust, feathers and ammonia choke the air in the chicken house and fans turn it into airborne sandpaper, rubbing skin raw."