Put your pet inside an icebox and make sure that it is in a straight position to avoid the decomposition of your pet’s scales or feathers, if ever there is.
Fill the ice box with lots of ice, guaranteeing that your pet’s whole body is surrounded and fully covered by ice. This step should be done to make your pet’s body get away from being rotten.
Ensure that your container is properly sealed for the ice to not melt quickly that may cause for your pet’s body to decay.
Additional notes:
For BIRDS (or any pet with feathers): Keep their feathers dry before them inside a plastic bag. By doing this, the beauty of their feathers will be maintained.
For DOGS, RABBITS, CATS and other MAMMALS with hair: Dip their body into the water with ice for it to penetrate their body deeply