Ovine grass sickness (OGS) is a rare but severe disease affecting sheep on pasture. Understanding it prevents delayed diagnosis and prolonged suffering.
Sheep with grass sickness experience profound gut stasis and systemic autonomic failure that causes significant suffering. The condition is usually fatal, making early recognition and humane euthanasia important welfare responses in severe cases. In milder cases, intensive nursing care that maintains hydration and supports gut function offers some chance of recovery.