This is whats wrong with a lot of information out there. One pushing ones opinion on another. ALL ANIMALS STINK if not taken care of. If they stink CLEAN THEM. I have about 500+ mice in a 84F room at any given day and it hardly ever stinks unless its day i clean them. Have members here that can vouch that.
For one ASF is illegal in some states so to feed that as a sole diet to some hatchlings that could be sold off IMO is dumb. Rats do get to size faster, But if overwhelmed to fast they will out grow the biggest ball and then your stuck with something wasting food.
Gram per gram mice, rats, asf are just as good as one another. Considering NO ONE knows what these snakes nutritional values are. I have breeders on mice bigger than ones on rats. They all grow differently no matter what their fed on.
Most adults do well on one small rat a week, 2-3 breeder mice a week , or 1-2 adult ASF a week.
And when talking about hatchlings, Mice are easier to get them going, cheaper and easier for customers to get their hands on. Not everyone buying a snkae will have access to live rats of all sizes or as stated ASFs.
All snakes i dont plan on keeping are fed live mice for ease of purchasing food when with new owners.