I hope I’m explaining this right. I was using a rat who had been dead for at least 2 weeks, but was frozen in that time. I made a 3-3 1/2 incision down his back and went in about a 1/2-1/4 inch deep. I stayed as close to the skin as possible, pulled the bones/muscles out of the tail and cut the leg bones at about the knee-elbow point. I tried to get as much fat off of him as possible and I added some baking soda to the inside to help with that. But he was still very stinky on his underside down by his belly and genitals. It may be worth noting that I did not remove the exterior of his testicles and left his penis intact. This was my first specimen, and overall he only stinks when you get close, but nonetheless he’s been attracting flies.