Abstract
THE growing chick (2–7-week-old White Leghorn) is markedly resistant to the usually lethal effects of 100 per cent oxygen at one atmosphere (OAP), exhibiting only a depressed growth rate and feed intake1. It has been theorized that the different anatomy of the avian respiratory system might enhance resistance to a toxic agent believed to act primarily on the lungs. However, the young of several mammalian species are more resistant to the toxic action of OAP than the adults2. The question of whether the chicks' mild reaction to OAP was a function of its young age or unique anatomy could not be decided from the literature, which, so far as the domestic fowl is concerned, appears to be limited to a report on three adults3. Therefore, further tests involving the exposures of mature White Leghorns to OAP were undertaken.
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WEISS, H., BECKMAN, D. & WRIGHT, R. Delayed Mortality in Adult Chickens exposed to 1 Atmosphere Oxygen. Nature 208, 1003–1004 (1965). https://doi.org/10.1038/2081003a0
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DOI: https://doi.org/10.1038/2081003a0
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