So I've been breeding rats for over 2 years and now my production is down it seams that I never have enough rats to feed my snakes. I've been reading alot about rotating one male through every tub. Is this way better or is the way I've been doing it for the last two years good I just need new breeders. A little about my set up I have 3 racks two hold 10 tubs each and one has 6 tubs the mason tubs in the rack with 6 tubs I have 1.4 and the other 20 tubs I have 1.2 as they are smaller tubs so in total I have 26 tubs but as of today when I was feeding and checking I only have 3 litters and they are small litters 4-6 babies each. I would like to know what I should do.