My experience in just the brooding box is that will be torn up by the birds, and likely consumed. It is probably combined with fire retardants of some ilk (PFA's?) none of which are healthy to consume. These are not verified facts, but my suspicions...
GARDEN CITY, Mich. (WJBK) -
53-year-old Randy Zeilinger calls himself just a regular guy from Garden City except he will admit he takes some things to the extreme.
Read more: http://www.myfoxdetroit.com/story/22148903/garden-city-man-could-get-locked-up-over-chickens#ixzz2StOLRPgP...