Management strategies to reduce heat stress in sheep

Abstract

Sheep are an important socio-economic activity in many countries, where sheep are produced for the production of protein and fibre resources. Heat stress is a worldwide phenomenon that is associated with reduced animal productivity and welfare, particularly during the summer months. Animal responses to their thermal environment are extremely varied. Given the socio-economic role of sheep in developing nations, it is important to ensure sustainable production during all seasons. However, it is clearly evident that the thermal environment plays a significant role in influencing livestock productivity and well-being. The impact of heat stress on sheep production is likely to continue into the future due to climate change. The impact of climate change on sheep populations will be somewhat confounded by producer selection for increased growth and production traits. However with improved management the impact of heat stress on sheep can be minimised. The purpose of this chapter is to provide information regarding the management of sheep to reduce the negative impact of heat stress.