Few data are reported for the time course of rigor mortis in animals. In dogs stored at approximately 11°C to 17°C (52°F–62°F), diffuse rigor mortis was present at less than 1 day after death, and rigor mortis of the hind limbs and jaw persisted until 7 days after death.

How long does it take for a dog to go into rigor mortis?

Be aware that rigor mortis, the stiffening of the joints, typically begins within 10 minutes to three hours after death and can last as long as 72 hours. Again, temperature will affect this process. Ideally, the remains will be properly handled before the onset of rigor mortis.

What happens after rigor mortis in dogs?

When rigor mortis sets in after a few hours, your pet's body will stiffen and it can make burial more labour-intensive if your pet is lying on their side.