* Cooling the body. Rigor mortis occurs more quickly in warm temperatures. By cooling the body, you can slow down the process. This can be done by placing the animal in a cool environment, such as a refrigerator or freezer.
* Limiting movement. Movement can accelerate rigor mortis. Try to keep the animal as still as possible.
* Massaging the muscles. Massaging the muscles can help to keep them relaxed and prevent them from stiffening up.
* Using chemical agents. There are some chemical agents that can be used to slow down rigor mortis. These agents are typically used by morticians.
Rigor mortis is a natural process that will eventually occur in all animals. However, by following these tips, you can slow the process down and help to keep your animal looking its best for as long as possible.