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Keywords: labelled bicarbonate
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Journal Articles
Journal:
Journal of Experimental Biology
J Exp Biol (2004) 207 (22): 3969–3976.
Published: 15 October 2004
... to between 5 and 20% of unloaded body mass. The energy cost of flight was measured using the 13 C-labelled bicarbonate technique, which was also calibrated in a separate experiment on resting birds, by comparing the elimination rate of 13 C in breath with a simultaneous measurement of oxygen consumption...