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Ventilation Rates

Powered Ventilation Rates for Lifestock & Poultry

Type of Livestock Poultry Min Temp. - °F Type of Housing Min. Winter Rate CFM Per Unit Max. Summer Rate CFM Per Unit
  • 1 This ventilation rate is considerable greater than that requited to control humidity. It may have to be further increased if it does not give at least four room air changes per hour.

  • 2 20.3 applies where manure is removed weekly. With deep pit manure storage, increase to 0.5 and increase supplemental heating accordingly.

  • 3 Start day-old chicks, pullets and weaning pigs at the first temperature and gradually decrease temperature as they grow.

  • 4 65°F ISA comfortable room temperature for the sow, but newborn piglets need 84°-86°F min. Provide a heated creep and gradually decrease creep temperature to 75° as piglets grow.

  • 5 Not over one air change per minute for sensitive stock.
Dairy Cattle
1000 lb Cow




1000 lb Cow



1000 lb Cow

36 °




36 °



36 °
41 °

Conventional fall to spring stabling. Ventilation by windows or doors during summer. Walls insulated less than R 5


Year-round housing. Windowless or non opening windows. Walls & ceilings insulated to at least R10


Milking parlor

Milk Room
21 / Animal




25 / Animal



25 / Stall
--
340/Animal




400/Animal



400/Animal
600/Animal
Calves
Dairy replacements
White Veal
Continous Housing:
110 lb (1mon.) average calf
140 lb (1mon.) average calf
All-in, all-out housing:
95 lb. at start
300 lb. at finish
45°
68°



Year-round housing in well insulated barn


Year-round housing in well insulated barn


1 10/Calf

1 16/Calf
1 10/Calf

1 20/Calf



85/Calf

127/Calf
85/Calf

170/Calf
Beef
100 lb. Cow

Venilation by windows or doors during summer


Walls insulated less than R 5

Year-round housing in well insulated barn

Chickens
Laying Hens

Heavy Breeder Hens
Replacement Pullets
Chicken Broilers

64°
60°
60°
3 90°-64°
3 90°-64°

Cages, high density

Litter, up to 1.5 ft.2/bird

Litter or mesh floor

1 or 2 deck cages

Litter, up to 1 ft.2/bird
20.3/ hen
0.4/hen
0.4/hen
0.04-0.4/pullet
0.04-0.3/bird
6/hen
7/hen
7.6/hen
5/pullet
5/bird
Turkeys
Broilers, 0-14 weeks
Heavy Broilers, 18-22 wks
15-20 lb. max.
Breeders
(light to heavy breeds)
3 95°-64°
60°


60°

Litter

Litter



Litter
0.1-0.6/bird
1-2/bird


1-2/bird
14/bird
19-32/bird


17-30/bird
Swine
Dry Sow
Farrowing Sow & Litter

Weaning Pig 15-55 lb.

Grower, 55-130 lb.
Finisher, 130-220 lb.
Combined, 55-220 lb.
55°
65°
4 65°
3 75°-65°
75°
65°
60°
65°

Group Pens

Individual Pens

Farrowing Pens

All-in/all-out housing

Continous housing

Partly Slotted Floor

Partly Slotted Floor

Partly Slotted Floor

6.3/sow

5.1/sow

15/sow

0.9/pig

1-5/pig

2.5/pig

4.2/pig

3.4/pig

200/sow

200/sow

5200/sow

534/pig

25/pig

568/pig

585/pig

574/pig

Horses

100o lb. Horse
65°

Year-round insulated stabling, ventilated by windows and doors during summer
20/horse
1700/horse
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