Publication Details

Hogan, N., Kerr, C. A., Hinch, G. N. & Fisher, A. (2004). A heat challenge model for animal welfare assessment. Animal Production in Australia 25 (p. 261). Australia: ASAP.


The scientific study of livestock management issues that have a significant animal welfare component has long included the measurement of both behavioural responses and physiological effects. One of the recurring problems in this area of research is a failure to adequately link these 2 fields of measurement. In order to do this, a model is required that allows incremental increases of the intensity of the stressor so that adaptive reactions can be monitored at the different levels. Therefore, the aim of this experiment was to define the physiological effects of incremental changes in heat challenge, with the intention of developing a model whereby animal motivation to avoid certain levels of heat stress could be assessed.