prepping sheep trotters for livestock guard dog treats

We got a bag full of frozen lamb trotters from the butcher today (we pasture raise sheep) and I need to process them ASAP. I'd like to give them to our dog. He's mostly a livestock guard dog but he's not a very well-trained one. He got too playful with the goats as a puppy and has since lived next to, not with them. He's never killed a goat, lamb or chicken but he has been in with them a couple of times and instigated naughty chasing games. This is all background because I don't want to teach him that it's okay to chew on lamb's legs.

How do I prepare trotters for him? I'm thinking if I can char or scald them to get the hair off, I can then smoke them to dehydrate and preserve them. Then they won't take up freezer space, the bones won't be cooked and cause risk of splintering, AND it won't be a biting through wool and skin situation so he will know one is food and one is not. Even a quick char to remove hair could allow me to put them in my freezer if they aren't completely dried.

Does any one have experience with this? Any advice? I have ears too. And trachea. I might put the trachea right in the dehydrator as they are clean, but I prefer processing the trotters and ears in the outdoor fireplace.

Hi M,
I don't have any personal experience, but I remember reading a story (I think it was on Permies, but I can't find at the moment). This was with well trained LGD's. In a sheep pasture during lambing, the dogs would eat the after-birth stuff, but leave the lambs alone. If a lamb died, the dogs would move it to a corner of the pasture and eat it over the next couple days. Never ate a live lamb and never hurt anything. They knew the difference, and were just cleaning up things so it wouldn't attract predators. Pretty impressive if you ask me. I guess what I'm saying is that maybe it won't matter about the wool and stuff on the outside if/when the dog is trained well?