DESCRIPTION OF PROBLEM

In the last decade, considerable effort has been devoted to the development of effective, humane systems for depopulating poultry flocks to control outbreaks of highly pathogenic, po-tentially zoonotic avian disease. The primary focus has been on how to kill thousands of birds in large commercial flocks in a short time while protecting workers from exposure to potential pathogens. Various means have been tried, for instance, by constructing sealable enclosures © 2012 Poultry Science Association, Inc. A mobile modified-atmosphere killing system for small-flock depopulatio