Tortoise Hibernation Welfare | Animal Welfare Hub

Hibernation management for pet tortoises is a critical welfare responsibility, with improper hibernation causing dehydration, disease and death.

Key Facts

European tortoise species including Testudo hermanni, T. graeca and T. ibera require annual hibernation for physiological health
Tortoises should be healthy and at appropriate weight before hibernation - underweight or sick tortoises should not be hibernated
The refrigerator method provides stable, controlled hibernation temperatures between 4-8 degrees Celsius
Dehydration during hibernation is a major welfare risk - tortoises should be bathed and well hydrated before hibernation entry
Duration varies by species and individual, typically 10-16 weeks for temperate European species

Welfare Considerations

Hibernation in captive tortoises is one of the areas where keeper knowledge most directly determines animal welfare outcomes. Tortoises that are hibernated while sick, underweight or dehydrated face life-threatening risks. Hibernation at inadequate temperatures causes excessive metabolic activity, depleting fat reserves and potentially causing death. Hibernation that is too long, too warm or without adequate monitoring can cause serious welfare harm. The high welfare stakes of hibernation management make pre-hibernation veterinary health checks strongly advisable.

What You Can Do

Schedule a pre-hibernation health check with a reptile-experienced vet for your tortoise each autumn
Weigh and condition-score your tortoise before hibernation and again regularly during the hibernation period
Use a reliable thermometer to monitor hibernation temperature and maintain 4-8 degrees Celsius
Bathe your tortoise thoroughly before hibernation entry to ensure full hydration
Contact a reptile vet immediately if your tortoise wakes unexpectedly during hibernation