Rhodents. i mean, totally, rhodents are the way to go, mostly rats and sometimes mice.
No matter what point in the breeding cycle it is, or what the special conditions are, its always rhodents, generally. of course it varies from tiny mice to fully adult mice, from pinkie rats to fully adult rats. Larger prey is always better, but we stick to mice and rats.
and for more useful answers you need to learn how to ask more useful questions. Until then, i can tell you: rats and mice, my friend, rats and mice.
EDIT: a hint: is it just breeding season or do you breed? and if its not just breeding season but you do breed, why did you not change your feeding scedule 7 months earlier, for when they breed they go off feed? Rats and mice my friend.