title: An open circuit respiration unit for calorimetric studies with small animals.
abstract: Two open-circuit respiration chambers for small animals (rats, poultry and rabbits) have been built at the Estación Experimental del Zaidín. The respiration facility is air-conditioned, the temperature and the relative humidity in the chambers can be regulated from about +15 to +30 degrees C and from 60 to 90%, respectively. The air flow is determined by the differential pressure principle, CO2 measurement is by the infra-red technique and O2 analyser is of the paramagnetic type. The present work describes the technical details of the respiration plant and the calibration procedures of the whole system.
mesh_terms: D000389:Air Conditioning / Q000295:instrumentation; D000818:Animals; D002138:Calibration; D002151:Calorimetry / Q000295:instrumentation*; D002153:Calorimetry, Indirect / Q000295:instrumentation*; D002245:Carbon Dioxide / Q000032:analysis; D004867:Equipment Design; D010100:Oxygen / Q000032:analysis; D012119:Respiration; D012212:Rheology; D014691:Ventilation
chemical_list: D002245:Carbon Dioxide; D010100:Oxygen