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Formaldehyde vaporization in the hatcher and the effect on tracheal epithelium of the chick
J E Sander1, J L Wilson, G N Rowland
1Department of Avian Medicine, College of Veterinary Medicine, University of Georgia, Athens 30602, USA.
Avian Diseases
|January 1, 1995
Abstract:
Chicken embryos were exposed to formaldehyde vapors in the hatcher during the final 3 days of incubation. Measured formaldehyde levels approached 130 ppm. Tracheas collected at hatch and 5 days post-hatch were evaluated for functional and morphologic changes. Tracheal cilia motility was reduced in formaldehyde-exposed chicks. Scanning electron microscopy revealed blunted cilia and blebs occurring in the cilia surfaces. At 5 days of age, excessive tracheal mucus was present. Sloughing of the tracheal epithelium was visible by light microscopy.