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Calorimetry or the measurement of heat transfer between animals and the environment has been conducted at U.S. Meat Animal Research Center for several years. The primary objective of calorimetry has been the evaluation of maintenance energy requirements of animals. For cattle, maintenance requirements for either lactation or growth have been of interest.
Calorimetry can also provide information useful in evaluating heat dissipation by animals in various environments. Recent measurements were completed at U.S. Meat Animal Research Center by a Swedish engineer to provide answers to a beef housing problem. Current information has proven to be inadequate for the design of beef housing ventilation systems, resulting in unacceptably high humidities in the buildings. Therefore, a study was designed to measure the heat and moisture production of cattle in response to air temperatures from 43 to 75°F.