Egg Industry August 2019 - 4

4 ❙ EggIndustry

Ventilating the world's largest
cage-free layer house
With the shift toward cage free, ventilation systems will
have to adapt in new laying hen housing models.
DEVEN KING

W

ith the U.S. egg-laying industry potentially moving toward 100% cagefree production, new housing systems
are being tested to find what methods make the most
sense economically while providing for bird health and
welfare. Recently, an Iowa egg producer constructed a
unique two-story, cage-free house for 540,000 hens.
Inside the outer skin of the building, walls and roof
are four housing enclosures or rooms. These rooms are
arranged as two stacks of two, which are placed side by
side with air space in between the two stacks and over
the top of the stacks to serve as a plenum for air movement from outside the building to the inside of the rooms.
Each room is 100 feet wide and 640 feet long and houses
135,000 hens. Each room has five zones. The exterior
dimensions of the building are 220 feet by 640 feet.

Recently, an Iowa egg producer constructed a
unique two-story, cage-free house for 540,000
hens. Deven King
The birds can move across the 100-foot width of
the room, but each room is divided by fencing into
five compartments that are 128 feet long. This type
of aviary system is called a Bolegg Gallery created
by Vencomatic.

Building ventilation
This ventilation system was designed by a group of
people working with several organizations, including
ventilation experts at equipment suppliers Munters
and Valco, managers for the egg production
company responsible for building the new systems and
engineers from Henning Construction.

Latest cage-free ventilation, lighting and litter tactics: www.WATTAgNet.com/articles/30639


http://www.WATTAgNet.com/articles/30639

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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