my common ones are Peromyscus raising common house mice (after I take /need all the Peromyscus pinks/fuzz)

Chinese hamsters raising mouse pinks (same reason)

I have thrown asfr in with chinese hamster or mice , I have thrown other things around....only thing I ever did/do with rats is to combine litters after needed a cage for a new mother or after using half of each litter anyways...might as well combine them.....(rats are one female per cage after dropping)...

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