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Quaternary ammonium compound toxicity in chickens
Avian Diseases
|October 1, 1982
Summary
Accidental overuse of quaternary ammonium disinfectant in drinking water caused high mortality and severe oral lesions in two commercial White Leghorn flocks. This veterinary toxicology incident highlights the risks of disinfectant misuse in poultry farming.
Area of Science:
- Veterinary Toxicology
- Poultry Pathology
- Animal Husbandry
Background:
- Commercial poultry farms rely on strict biosecurity and hygiene protocols.
- Disinfectants are crucial for disease prevention but can be hazardous if misused.
- Accurate dosing is essential to prevent adverse effects on animal health and production.
Observation:
- Two large White Leghorn flocks experienced sudden, high mortality rates.
- Affected birds exhibited oral lesions, including pale mucosa and ulcerations, along with cyanotic combs.
- Necropsy revealed egg yolk peritonitis, suggesting systemic effects.
Findings:
- Gross and microscopic examination confirmed coagulative necrosis and ulceration of oral and pharyngeal tissues.
- An intense heterophilic inflammatory response was noted at the periphery of necrotic areas.
- The clinical signs and lesions were definitively linked to excessive quaternary ammonium disinfectant in the drinking water.
Implications:
- Misapplication of disinfectants can lead to significant economic losses in poultry operations.
- This case underscores the critical need for precise disinfectant dilution and administration protocols.
- Veterinary diagnostics are vital for identifying toxicological causes of mass mortality events in livestock.