I can esure you i dont sell the babies that i have culled i give them to friends to feed there animals.

Do some reseach first you cant make a profit from breeding mice, You spend more raising a litter, or at least i dont make money from them yes i sell them but the money goes straight back into the mice.

As for rat breeders saying mice breeders are worse for culling, I know a rat breeder and she says that rat breeders arent that much better either and that some can be quite rude.

Moneywise im sure rat breeders make a lot more money from breeder than mice breeder do.

I sell my mice at £3 each, To my left ive got 4 female rats that cost me £10 each, Behind me ive got 2 males that cost £10 for the pair as i rescued them from being snake food ( this was when i didnt care much about snakes but now my attitude has changed and i dont mind them or the fact that they eat mice )