Sheep welfare in grazing systems depends on stocking density, parasite management, predator protection, and veterinary care — all of which vary enormously between operations.
Sheep welfare in extensive grazing is shaped by parasite burden, lameness, and protection from predators. Haemonchus contortus infection causes anemia and death without treatment; treatment resistance in parasite populations means targeted selective treatment based on FAMACHA scoring (eyelid color) is the welfare-optimal approach. Footrot (Dichelobacter nodosus) causes severe lameness that is extremely common, extremely painful, and highly preventable through footbathing and biosecurity. Guardian animals address predation without the welfare harm of lethal predator control.