A self-compensating, closed-circuit respiration calorimeter for small mammals and birds

Abstract

The calorimeter has special features which make it independent of changes in ambient temperature and pressure and therefore able to record precisely not only the integral of respiratory exchange over periods of 24 h but also the rate of oxygen consumption over short periods. Experiments with mice and kestrels (Falco tinnunculus) are presented to illustrate the accuracy of the apparatus. © 1981, Royal Society of Medicine Press. All rights reserved.