Sheep must be shorn annually to prevent welfare problems from excess wool growth. The welfare during shearing depends heavily on shearer skill, sheep handling and environmental conditions.
Shearing welfare is determined primarily by shearer competency and handling quality. A skilled shearer who works quickly, handles the sheep with confidence and avoids unnecessary cuts minimises the duration and intensity of the stressor. Poor shearing technique causes cuts, bruising and prolonged handling that extend the welfare cost significantly. Environmental conditions at shearing also matter: freshly shorn sheep are vulnerable to cold and must have access to shelter, particularly if shearing occurs in spring before reliably warm weather. The routine nature of shearing should not normalise inadequate attention to welfare during the process.