12/01/2024
TORPOR / HIBERNATION
I'm working on a more cohesive article with references and more accurate numbers, but here is an outline to help with the increasing influx of issues that we are seeing now that the cold season is coming in the northern hemisphere.
First off, domestic hamsters (syrians, roborovskis, campbells', winter whites, and chinese hamsters) do not hibernate. They go into torpor. Torpor is an emergency response to cold temperatures that will cost their life if not reversed quickly.
SYMPTOMS / IDENTIFYING TORPOR
-the animal will be cold but soft. If stiff, the hamster passed long enough ago to have entered rigor mortus. If warm, the hamster is not experiencing torpor, but if unresponsive they are likely passing away, if a vet is a possibility I recommend seeking one.
-you may be able to feel a VERY slow heart beat, place 2 fingers on the chest and press LIGHTLY, wait 60 seconds to feel for any beating.
-you may be able to feel or see them breathe. You can place a finger right up to the nose with just enough room to breathe, and feel for a minute or so for breath. A spoon can be placed in the same position to look for condensation from breathing.
-they will sometimes look dehydrated (eyes often sunken shut as the body attempts to protect them from the temperature threat)
If no breathing or heart beat is noted, you can still attempt to warm them in case something was missed, up to the owner.
HOW TO REVERSE IT
-skin to skin contact is ideal. Placing the hamster near the core of your body (chest working best), and cupping a hand over them to hold in more heat. The animal should start to become responsive within 30 minutes or so. If no signs (twitching of limbs, whiskers, eyes beginning to open, ears moving, etc) within 30 minutes, check for signs of life.
-if you cannot perform skin to skin contact, a hot water bottle, heat pack, or hand warmer can be used. Make sure that the surface is no warmer than your own skin, as heating them up too quickly can be dangerous as well.
As torpor reverses and the hamster begins to wobble around, offer fatty foods (sunflower seeds, critical care, etc). Monitor that behavior and activity level returns to normal overnthe next few days.
PREVENTING TORPOR
-keep the hamster in a draft free room, ideally at 70 degrees or warmer
-offer deeper bedding, the more the better to allow them to thermoregulate on their own
-slightly increase fat content in diet to account for additional energy needs (not recommended if temperature is above 70°)
-offer a variety of nesting materials to encourage nesting (hays, soft chopped straw, paper towels/toilet paper sheets, even empty spray stems can be laid out as nesting material)