PoultryUSA - May 2018 - 18
18 ❙ WATTPoultryUSA
BROILER LITTER QUALITY
energy - but by increasing circulation fan capacity. Traditionally,
circulation fans are mixing about 10
percent of the air in the house every
minute. He wanted to know what
Missed the WATT Global Media webinar on litter moisture
management? Watch the full session on demand:
would happen if that capacity was
increased to 20 percent or higher.
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1 Data on file.
HATCHPAK® is a registered trademark of Merial.
© 2018 Merial Select, Inc. Gainesville, Georgia.
All rights reserved. Merial is now part
of Boehringer Ingelheim.
AV16-003A / HPC(02/17)
Czarick discussed a pair of studies
examining this concept. One study
compared the performance of three
total houses: two with fans capable of
mixing about 9 percent of the air - using 18-inch, one-tenth horsepower circulation fans - and one house with fans
capable of mixing about 18 percent
of the air - using 24-inch, one-third
horsepower circulation fans. One house
with 18-inch fans maintained about
50 percent relative humidity, while the
other maintained between 60 to 70 percent relatively humidity. The house using the larger fans maintained about 50
percent relative humidity. Connie Mou,
a poultry science graduate student at
University of Georgia, assisted in the
study. The study was sponsored by the
US Poultry & Egg Association.
In the study, footpad lesions were
monitored as a way to track the fans'
effectiveness at controlling moisture at
the litter level. The results showed the
house with the higher capacity ventilation recorded the lowest amount
of footpad lesions whereas the house
with the lower circulating fan capacity and highest humidity recorded the
most lesions of the highest severity.
A subsequent study, which studied the extremes - comparing a house
with no circulation fans and one
with high-volume circulation fans
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