Oecologia

, Volume 19, Issue 3, pp 195–201

Energy equivalents of oxygen consumption in animal energetics

  • J. M. Elliott
  • W. Davison
Article

DOI: 10.1007/BF00345305

Cite this article as:
Elliott, J.M. & Davison, W. Oecologia (1975) 19: 195. doi:10.1007/BF00345305

Summary

The energy equivalents given in the literature are reviewed and criticised. New equivalents are calculated for protein respiration.

The energy equivalent for converting rate of oxygen consumption into rate of heat production (Qox cal mg-1 oxygen consumed) is 3.53 cal mg-1 for carbohydrate oxidation, 3.28 cal mg-1 (range 3.22–3.32) for fat oxidation. Qox values for the respiration of standard protein are the same at 3.25 cal mg-1 for ureotelic and uricotelic animals, and about 2% less at 3.20 cal mg-1 for ammoniotelic animals. The energy equivalent for converting rate of oxygen consumption into rate of energy loss in excreta (Qex cal mg-1) varies considerably with different excretory products. Values for standard protein are 0.62 cal mg-1 for ammonioteles, 0.58 cal mg-1 for ureoteles, and 0.94 cal mg-1 for uricoteles.

The various factors affecting both Qox and Qex are discussed, and examples of the estimation of general energy equivalents are given.

Copyright information

© Springer-Verlag 1975

Authors and Affiliations

  • J. M. Elliott
    • 1
  • W. Davison
    • 1
  1. 1.Windermere LaboratoryFreshwater Biological AssociationAmbleside

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