Abstract
In some species of birds, simultaneous measurements of ventilation and oxygen consumption have shown that oxygen extraction increases with the increase in metabolic rate induced by cold exposure (Bucher, 1981; Brent et al., 1983, 1984; Bech et al., 1984). In addition, measurements of the oxygen content in the interclavicular air sac of Pekin ducks, indicate that oxygen extraction improves at low ambient temperatures (Bech et al., 1984). A more efficient gas exchange under cold conditions has an obvious thermoregulatory significance, because a decreased air convection requirement implies a reduction in the respiratory heat and water losses.
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References
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© 1989 Springer Science+Business Media New York
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Johannesen, H., Bech, C. (1989). Respiratory Responses of the Mallard to External and Internal Cooling. In: Bech, C., Reinertsen, R.E. (eds) Physiology of Cold Adaptation in Birds. NATO ASI Series, vol 173. Springer, Boston, MA. https://doi.org/10.1007/978-1-4757-0031-2_18
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DOI: https://doi.org/10.1007/978-1-4757-0031-2_18
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