Sheep Grazing Systems and Welfare Outcomes

The grazing system used for sheep profoundly affects their welfare, with extensive systems offering more natural behavior but also greater exposure to weather and parasites, while intensive systems provide shelter but restrict natural behavior.

Key Facts

The UK sheep population is approximately 23 million, the largest sheep industry in Europe
Extensive hill farming provides large areas for foraging and social behavior but exposes sheep to harsh weather
Lowland intensive systems may include housed ewes during winter and lambing, reducing weather exposure but restricting movement
Set-stocking (fixed grazing) systems tend to have higher parasite burdens than rotational grazing systems
Sheep in mixed-age stable flocks show better social welfare than those frequently regrouped
Shearing welfare depends on shearer skill, timing, and post-shear weather exposure management
Lambing outdoors in poor weather causes significant lamb mortality from hypothermia, particularly for small or multiple lambs
Pregnancy toxaemia (twin lamb disease) is a common welfare problem in underfed pregnant ewes

Welfare Considerations

Sheep welfare in grazing systems involves trade-offs that require careful management. Extensive systems provide behavioral freedom but expose animals to weather and parasite challenges. Indoor housing during lambing reduces lamb mortality from exposure but removes freedom of movement. The key welfare determinants across systems include adequate nutrition throughout the production cycle, parasite burden management, competent stockpersonship, and timely veterinary care. Sheep are stoic animals that mask illness effectively, meaning welfare problems including foot rot, mastitis, and internal parasites can become severe before detection without systematic health monitoring.

What You Can Do

Support the Scotch Lamb and RSPCA Assured certification schemes for higher welfare sheep production
Advocate for regular flock health monitoring to be a requirement in sheep farming standards
Choose lamb and wool from farms with low mortality rates and certified high welfare practices
Learn about sheep welfare indicators to support informed consumer choices
Support research into parasite management approaches that reduce antiparasitic drug use in sheep