Breeding Rats and Mice together in the same room??

Does it count that I have a freezer in my rat room with frozen mouse in there?

Thanks for all the tips and advice guys,i'll continue with them in the shed with no heat and natural daylight and see what happens! my mice happily breed all year round in there and our winters in england can get cold! I'll start a fresh with new Rat breeding females which i can buy from my local pet shop.Once again thanks for the advice.

personally i think the issue is no heat here. if it's too cold for the babies to survive the mama's would eat them to take the nutrition back into their bodies instead of just leaving them to die on their own.

add a heater for them and i bet things will settle down. cause at those temps... their water dishes will freeze!

after all, rats in nature would find a nice warm compost pile or the attic of a house etc... for warmth!

i would add a light as well... since grey skies do not bring much light!

Worth a try thanks for the input.:carrot:

I've found that when the temps are down in the 30's in the rodent room the actual temps inside the tubs are in the 60's thanks to temp guns. I also turn the exhaust fan down real low or off because it will suck out any warm air the rats generate quickly. I turn off all the fans in the room as well. Just some more food for thought.

Ps If their water supply starts to freeze its too cold