Horse Spring Turnout and Laminitis Prevention

Spring grass presents a significant laminitis risk for susceptible horses and ponies. Managing turnout carefully during this period protects welfare without unnecessary confinement.

Key Facts

Laminitis is inflammation of the laminar tissue within the hoof — it is extremely painful and can be permanently disabling
Spring grass is high in non-structural carbohydrates (fructans and sugars) that trigger laminitis in susceptible individuals
Horses and ponies with Equine Metabolic Syndrome (EMS) or PPID (Cushing's disease) are at highest risk
Early morning grazing (when fructan levels are lowest) is safer than afternoon grazing for high-risk horses
Grazing muzzles reduce grass intake by up to 80% while allowing horses to remain at pasture with companions
Winter and autumn grass can also trigger laminitis, especially after frost when stressed grass accumulates fructans

Welfare Considerations

Laminitis causes severe, sometimes excruciating pain and can lead to rotation or sinking of the pedal bone within the hoof capsule — a life-altering injury. The condition is entirely preventable in most cases through informed management. The welfare challenge for owners of susceptible horses is balancing laminitis prevention against the welfare costs of unnecessary confinement. Grazing muzzles, track systems, and time-limited turnout during low-risk windows allow horses to remain outdoors with companions while managing intake. A horse unnecessarily stabled 24 hours to prevent a laminitis risk that could be managed through muzzled turnout is experiencing an avoidable welfare cost.

What You Can Do

Work with your vet to identify horses at high laminitis risk (test for EMS and PPID in overweight or cresty-necked horses)
Use a well-fitted grazing muzzle rather than box rest to manage spring grass intake
Graze risk horses in early morning (before 10am) when fructan levels are lowest
Learn the signs of early laminitis: heat in hooves, bounding digital pulse, characteristic leaning-back stance
Contact your vet immediately if you suspect laminitis — early treatment substantially improves outcomes