Seven-channel small animal respiratory metabolism measuring device

The invention relates to a seven-channel small animal respiratory metabolism measuring device and belongs to the technical field of measuring of small animal respiratory metabolism. A multi-functional poultry gas analyzer outputs a signal which is received by a microcomputer and the gas outlet and the gas inlet of the multi-functional poultry gas analyzer are connected with six odd-number gas flow meter gas outlets and six even-number gas flow meter gas inlets. The gas inlet of a general gas flow meter is connected with the gas outlet of an air compressor through a reducing valve and the like. The gas outlet of the general gas flow meter is connected with the six odd-number gas flow meter gas inlets respectively. Six respiratory metabolism chamber gas inlets and six respiratory metabolism chamber gas outlets are connected with the six odd-number gas flow meter gas outlets and the six even-number gas flow meter gas inlets respectively. A vortex type fan is respectively connected with the six even-number gas flow meter gas outlets. According to the seven-channel small animal respiratory metabolism measuring device, the humidity in a respiratory metabolism chamber can be reduced from 99% or more to be 75% or less and then maintained constant. The oxygen consumption amount, the CO2 amount, the breathing entropy and the heat generating amount can be measured, the flow of the dried gas can be controlled between 0.5 L per minute and 200 L per minute and the gas can be used by six groups of small animals with the weights ranging from 10 g and 10 kg at the same time.