Captive hamsters typically don’t enter true hibernation, but they may experience a hibernation-like state called "pseudo-hibernation" due to excessively low environmental temperatures or nutritional deficiencies. Here are the specific symptoms and response measures:
I. Characteristics of Hibernation in Captive Hamsters
Pseudo-hibernation State
When the environmental temperature remains below 10°C, hamsters may exhibit pseudo-hibernation symptoms such as slowed breathing, decreased body temperature, and stiffening of the body.
Unlike wild hamsters, domesticated hamsters don’t need to hibernate to survive, thanks to the constant temperature environment and ample food supply.
Species Differences
Syrian hamsters (golden hamsters) usually don’t hibernate, while Roborovski hamsters are more prone to pseudo-hibernation in low temperatures.
II. Identification and Handling of Pseudo-hibernation
Symptom Judgment
Signs include slight trembling of the whiskers, a faint heartbeat in the chest, and a cold body that isn’t completely stiff.
The key difference from death: Pseudo-hibernating hamsters can be roused, whereas deceased ones have no signs of life.
First-Aid Measures
Use a hair dryer on the low-heat setting (held 20 cm away) to warm the hamster slowly; recovery usually occurs within about 20 minutes.
Feed glucose to replenish energy, and ensure the environment is stabilized at 20–25°C.
Note: Wild species like European hamsters may hibernate, but pseudo-hibernation in domesticated hamsters is abnormal and requires prompt intervention to prevent death.