Feeding my snake rabbits?

[Philmul]

Hi just wondering. My wife and I breed mini lop rabbits to sell as pets not food. I was just wondering as when the rabbit has a large litter, more often than not a couple die but I was thinking is this ok to feed the dead ones to my boa or not as the majority of the time they die from being the runt of the litter and to weak. Or am I best avoiding them and buying them from the shop.