Studies on lamb hypothermia using a model lamb

A thermostatically controlled piece of equipment was developed which measur ed the rate of heat loss to the environment. The equipment was used to prod uce an equation which related ambient temperature, rainfall, windspeed, and light intensity (which was used as a measure of solar radiation) to heat l oss from the model. In the future this equation could be used on a regional basis to help predict the risk of lamb hypothermia at lambing time accordi ng to the anticipated weather conditions. The model was also used for asses sing the saving in heat loss provided by a commercially available insulatin g cover, and by a tree shelterbelt.