Some minimum amount of ventilation must be given at all times when there are birds present in the house
– no matter what the outside temperature is. Minimum ventilation can be used during winter and summer
and at any stage of the production cycle but is most commonly used during brooding and cool weather
(i.e. whenever it is colder outside than the desired in-house set point temperature and the actual house
temperature is at or below the required set point temperature). Minimum ventilation is not adequate for
cooling birds during high temperatures and should create very little air movement at bird level, this is
particularly important for young birds under 10 days of age.