Let me just say! This is not how normal live-feeding goes. I do it this way; I toss the food item in. Snake acts interested, and eats. or, snake is disinterested, coils up, and i remove the rodent after a few minutes.
I have never seen a rat go at a snake like that one had to have. That definately hda to have been, a starved (and probably dehydrated) rat, who would eat anything in sight fast, including another rat possibly.
So, is the snake's skin growing back and regenerating?
I am disappointed; I would have put a bullet through the poor thing's head as soon as I got it home; instant mercy killing.