Click on the underlined title to access the document or go back to the Search Results screen to download the PDF version.

If you are not an ASABE member or if your employer has not arranged for access to the full-text, Click here for options.

[First paragraphs]: All living organisms respond to their environment through sensible and latent heat exchange processes. Many problems in animal agriculture involve interactions with environmental factors--temperature, humidity, solar radiation, and wind--which govern these processes. The interplay among temperature, humidity, and solar radiation can be critical, as there is a defined range of thermal conditions within which animals can maintain homeothermy through behavioral and physiological means, while continuing to consume feed at levels needed to maintain production and health (Hahn, 1999). Management decisions for livestock or environmental control systems require accurate environmental measurements. Livestock research also requires accurate monitoring and control of environment to develop needed relationships between such measures for developing models of animal performance.