Abstract
ASPERGILLOSIS has frequently been reported as the cause of heavy mortality in chicks, and it has often been encountered in individual adult birds. However, reports on aspergillosis affecting many adult birds in a flock have not been frequent. Guberlet (1923) reported on an epizoötic of aspergillosis in several flocks of adult chickens in Oklahoma.The outbreak herein reported appears to be of particular interest in that affected birds showed symptoms not unlike those shown by birds affected with laryngotracheitis.HISTORYA flock owner in western North Carolina shipped three mature pullets to our laboratoy for diagnosis; he furnished the following information: approximately 10 percent of a flock of 2,300 eight-month-old Barred Plymouth Rocks showed symptoms of a respiratory disease as indicated by gasping and a râle. No abnormal mortality had occurred, but egg production was lowered. The flock was confined to a floored house and fed a commercial grain and .
Published Version
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