COMPOSTING POULTRY MORTALITY
Composting chicken carcasses and chicken litter
The
Process:
The composter
was loaded with 500 lbs. of poultry carcasses and 300
lbs. of poultry litter. The mixture was inoculated with CBCT stock solution
(CBCT concentrate mixed with water at
a rate of 1:200) to bring the initial moisture content to
40% and initiate and accelerate the composting process.
Fourteen
hours after loading was completed temperature within the
composter reached 131 degrees F indicating that
biological decomposition was occurring.
Temperatures
ranged from 128 degrees F to 146 degrees F throughout the
composting period. Moisture content was maintained at 45%
to 55% by aeration and the addition of dry matter.
The carcasses reached thermophilic
decomposition and stabilization in eight (8) days. The
only apparent residuals were larger bones which were
separated from the material before it was stored for
seasoning.
After a
seasoning period of 28 days, the material was a odorless
and dry with a consistency of good dirt.
Conclusion:
In-vessel composting provides an environmentally safe,
low management alternative to static-bin composting and
incineration. Co-composting of litter and carcasses can
be mutually beneficial to both the poultry and livestock
industries, as well as the environment.
Grinding the carcasses to reduce the size of
larger bones would substantially reduce the composting
period. Grinding can be carried out with the use of a tub
grinder.
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WASTE
MANAGEMENT PRODUCTS
Compost Additive
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Soil
Health