Data capture: development of a mobile open-circuit ventilated hood system for measuring real-time gaseous emissions in cattle.
Odongo, N. E.
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This chapter describes a mobile, open-circuit ventilated hood system for measuring real-time gaseous exchange in large ruminants at the farm level. It uses improvements in technology for the determination of O2, CO2 and CH4 contents, measurements of air flow, absolute pressure, temperature and relative humidity, system control and data acquisition. Details of the three experiments conducted to test the calorimetry system are presented. All animals adapted easily to confinement in the hoods and there were no indications of discomfort or stress in the animals.