I have to agree with oltmr on this one. If the weather is decent we will let a deer hang for 5 to 6 days before cutting it up. I have also picked up a couple of road kills in the past when coming home from working all night in the summer. I would quarter them up and lay them on some racks in an old fridge that we keep water, sodas and the like in for our grandchildren. Just let them lay on it for 3 to 4 days. As long as cool air can get at it and cool the heat out of the meat is the main thing..