Document Detail


Polytetrafluoroethylene gas intoxication in broiler chickens.
MedLine Citation:
PMID:  10879927     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
A poultry research facility that housed 2400 Peterson x Hubbard cross broilers (48 pens of 50 chicks each) experienced 4% mortality within 24 hr of chick placement. Mortality started within 4 hr of placement, and within 72 hr, cumulative mortality had reached 52%. Mild dyspnea was the only clinical sign noted in some chicks prior to death. The primary gross lesion noted in the chicks submitted was moderate to severe pulmonary congestion. The lungs of four of these chicks sank in formalin, and blood-tinged fluid was noted in the mouth and nares of two chicks. The microscopic lesions noted in the affected chicks were moderate to severe pulmonary edema and congestion. The diagnosis indicated to the submitter was that pulmonary edema caused by exposure to an unidentified noxious gas caused the death of the chicks. The poultry house environment was tested for sulfur dioxide, oxides of nitrogen, carbon monoxide, carbon dioxide, and volatile organic compounds (as produced by combustion engines); all tests were negative for significant levels of these compounds. A second broiler flock was placed in the same facility and the mortality at 6 wk was 11%, which was greater than the 2.5%-4.7% mortality seen in the previous four flocks on the farm. Further investigation revealed that the only change in management practice in this facility prior to the onset of the severe mortality problem was the replacement of 48 heat lamp bulbs (one for each pen). The new heat lamp bulbs were polytetrafluoroethylene (PTFE) coated. PTFE gas intoxication has been reported in several exotic avian species, but this intoxication has not been previously reported in a poultry flock.
Authors:
M Boucher; T J Ehmler; A J Bermudez
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Publication Detail:
Type:  Case Reports; Journal Article    
Journal Detail:
Title:  Avian diseases     Volume:  44     ISSN:  0005-2086     ISO Abbreviation:  Avian Dis.     Publication Date:    2000 Apr-Jun
Date Detail:
Created Date:  2000-12-14     Completed Date:  2000-12-14     Revised Date:  2003-11-14    
Medline Journal Info:
Nlm Unique ID:  0370617     Medline TA:  Avian Dis     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  449-53     Citation Subset:  IM    
Affiliation:
Department of Veterinary Pathobiology, College of Veterinary Medicine, University of Missouri-Columbia, 65211, USA.
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MeSH Terms
Descriptor/Qualifier:
Animals
Chickens
Disease Outbreaks / veterinary
Environmental Exposure
Environmental Monitoring
Fatal Outcome
Gas Poisoning / pathology,  veterinary*
Polytetrafluoroethylene / poisoning*
Poultry Diseases / pathology*
Chemical
Reg. No./Substance:
9002-84-0/Polytetrafluoroethylene

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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