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. 1975 Nov;39(5):849-50.
doi: 10.1152/jappl.1975.39.5.849.

An automatic, closed-circuit oxygen consumption apparatus for small animals

M J Stock

An automatic, closed-circuit oxygen consumption apparatus for small animals

M J Stock. J Appl Physiol. 1975 Nov.

Abstract

An apparatus suitable for the continuous measurement of oxygen consumption of rats and mice is described. The system uses a motorized syringe dispenser to deliver fixed volumes of oxygen to a closed animal chamber. The dispenser is controlled by a micro-differential pressure switch to maintain chamber pressure slightly above ambient. The rate of oxygen consumption is determined by timing the interval between successive operations of the dispenser. The system has proved suitable for a range of experimental conditions and treatments.

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