Adequate shelter from weather extremes is a fundamental welfare requirement for livestock in extensive and semi-extensive systems.
Livestock without adequate shelter from rain, wind, heat, and cold experience welfare compromise ranging from discomfort to life-threatening hypothermia and heat stroke. Shelter provision is a fundamental welfare requirement that is absent from some extensive grazing systems. Natural shelter through trees and hedges provides thermal protection while supporting biodiversity. Artificial shelter structures serve when natural shelter is inadequate.