Ventilation in Environment
Controlled House
Dr. Muhammad Kashif Saleemi
DVM, MSc (Hons.), PhD
Associate Professor
Department of Pathology
University of Agriculture Faisalabad
,Ventilation?
Moving the right amount of air at the right time
and in such a way to manage temperature,
humidity and other environmental factors for
optimum bird performance
,Why there is need of Ventilation?
• Birds need good environment
• Need more fresh air to full fill the needs due to higher
metabolic rate of birds.
• We need more fresh air to full fill the needs due to higher
stock densities.
• We want to expel excessive heat if any.
• We need dry litter despite high density.
• We want to expel noxious gases e.g. ammonia.
• Ventilation in a poultry house supplies fresh air that is
essential to sustain life. It also helps to reduce the
extremes of temperature, humidity and air
contamination to tolerable limits for confined chickens
, Ventilation systems
Generally divided into two types:
Natural air flow system
Mechanical air movement (fans).
Positive pressure
Negative pressure
Controlled House
Dr. Muhammad Kashif Saleemi
DVM, MSc (Hons.), PhD
Associate Professor
Department of Pathology
University of Agriculture Faisalabad
,Ventilation?
Moving the right amount of air at the right time
and in such a way to manage temperature,
humidity and other environmental factors for
optimum bird performance
,Why there is need of Ventilation?
• Birds need good environment
• Need more fresh air to full fill the needs due to higher
metabolic rate of birds.
• We need more fresh air to full fill the needs due to higher
stock densities.
• We want to expel excessive heat if any.
• We need dry litter despite high density.
• We want to expel noxious gases e.g. ammonia.
• Ventilation in a poultry house supplies fresh air that is
essential to sustain life. It also helps to reduce the
extremes of temperature, humidity and air
contamination to tolerable limits for confined chickens
, Ventilation systems
Generally divided into two types:
Natural air flow system
Mechanical air movement (fans).
Positive pressure
Negative pressure
