Egg Industry August 2019 - 6

6 ❙ EggIndustry
VENTILATING THE WORLD'S LARGEST
Fresh air enters Room A from the attic through the
eave inlets surrounding the whole perimeter of the
house. It then comes into the room through ceiling inlets
mounted over two of the six aisles of birds. Deven King
the outcome of the regulated ventilation airflow. There
are 13 ventilation stages.
There are 52 propane-fueled forced air heaters in
the entire house (13 per room). Each room has three
heaters in the blower room to heat the recirculated air.
This air is not only used for keeping the birds warm, but
it also dries the manure on each belt. Sizing and placement of the heaters were critical for generating optimum
comfort. A heater that is too big results in inefficiency,
and one that is too small might not have enough heat to
maintain the desired room temperature.
This building uses elevated airspeed for cooling rather
than an evaporative cooling system.

Upper floor
The layer house temperatures for ventilation are set
between 68 and 78 degrees Fahrenheit. Set temperature is
based on flock age and feed consumption. 
Building ventilation was automatically controlled with
a PMSI Command III environmental control system from
Poultry Management Systems Inc.  Openings for the inlets
are controlled according to the ventilation stage and the
house static pressure using this system.
Air is introduced through the plenum using air inlets
and hemisphere fans during cooler temps.
Both floors of the laying house are equipped with
six 36-inch sidewall fans and 30 51-inch sidewall fans
mounted in six exhaust fan banks on the outside wall.
Light traps, made custom for this system, are
installed between birds and the sidewall fans. Singlespeed fans are controlled by static pressure and air
temperature and are placed strategically to maximize

The east rooms of the second floor (Room A) and first
floor (Room B) are ventilated differently.
Fresh air enters Room A from the attic through the
eave inlets surrounding the whole perimeter of the
house. It then comes into the room through ceiling

Light traps, made custom for this system, are installed
between birds and the sidewall fans. Deven King
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Egg Industry August 2019

Table of Contents for the Digital Edition of Egg Industry August 2019

Egg Industry August 2019
Ventilating the world’s largest cage-free layer house
Employee ventilation training key to layer farm success
How to create an effective HACCP plan for shell egg plants
Egg Industry August 2019 - CT1
Egg Industry August 2019 - CT2
Egg Industry August 2019 - Egg Industry August 2019
Egg Industry August 2019 - Cover2
Egg Industry August 2019 - 3
Egg Industry August 2019 - Ventilating the world’s largest cage-free layer house
Egg Industry August 2019 - 5
Egg Industry August 2019 - 6
Egg Industry August 2019 - 7
Egg Industry August 2019 - Employee ventilation training key to layer farm success
Egg Industry August 2019 - 9
Egg Industry August 2019 - 10
Egg Industry August 2019 - 11
Egg Industry August 2019 - How to create an effective HACCP plan for shell egg plants
Egg Industry August 2019 - 13
Egg Industry August 2019 - 14
Egg Industry August 2019 - 15
Egg Industry August 2019 - 16
Egg Industry August 2019 - 17
Egg Industry August 2019 - 18
Egg Industry August 2019 - Cover3
Egg Industry August 2019 - Cover4
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