Ammonia - poultry housing

Housing type Ammonia Emission Factor (kg NH3/animal place/year)
Layers  
Cage with deep pit manure storage beneath 0.29
Ventilated deep pit 0.20
Manure removal twice a week by manure belt 0.035
Vertical tiered cages with forced air drying once a week removal 0.035
Vertical tiered cages with whisk forced air drying once a week removal 0.09
Vertical tiered cages with manure belt with drying tunnel over cage 24-36 hour removal 0.035
Barn and free range  
Perchery with deep litter 0.29
Litter system with forced air drying 0.12
Litter system with perforated floor and forced air drying 0.10
Aviary system 0.08
Broilers  
Naturally ventilated, fully littered floor, non-leaking drinkers 0.034
Fan ventilated, fully littered floor, non-leaking drinkers 0.034
Pullets  
Naturally ventilated, fully littered floor, non-leaking drinkers 0.06
Fan ventilated, fully littered floor, non-leaking drinkers 0.06
Turkeys  
Male 0.45
Female 0.23
Ducks 0.11

Ammonia - poultry manure storage

Manure storage Kg NH3/tonne fresh manure
Manure - belts 2.38
Manure - deep pit 2.38
Other 1.74

Poultry - dust emission factors

Poultry type kg dust/animal place/year
Layers, perchery or aviary 0.1
Layers, cage 0.05
Broilers 0.1
Turkeys (male) 0.9
Turkeys (female) 0.5
Ducks 0.2
Pullets 0.1

Methane emission factors

Description Enteric fermentation (kg CH4/animal place/year) Manure management (kg CH4/animal place/year)
Poultry Not estimated 0.078