So i use to breed a lot of rats,mice and some asfs that was about a year a go now. I'm working and i don't have the time for rats I found they took more effort to care for they drank more water and they needed to be clean a lot more then the asfs. I like the asf more but i made more money from the norway rats so i guess my question is sent the asf grow slower do they cost more money in food then rats thats and what would be the best age to cull of the asfs so i don't have to wast food on them?