I find if you seperate females it takes approximately 7 weeks from conception to weanling the babies. So you a female can produce a litter approximately every 8 weeks (if seperated), which they can average 8-17 a litter. So you will simply have to do the math for what you need for rats a week. I have 44 breeder females and produce enough for my 20+ snakes, a local lady that gets 14+ rats a week, 2 pet stores and still have enough left to freeze. Sometime soon I will sell the extra frozen and ship them. But for now the frozen are being vacuum packed and saved just in case of any low production.![]()