Breeding rats and mice in the same?

[BallPython17]

Today my friend told me that if I have a mouse colony in the same rack as my rat colony, the rats wouldn't breed because they smell the mouses scent. Is this true?

[filly77]

it wasn't true in my case.. i just got rid of all my mice as they take too long to raise up and i needed the space for more rats but when i was breeding mice and rats, their cages were on top of each other, i use one of those plastic utility storage racks.

[dmaricle]

i breed rats and mice all in the same room very close to each other and i see no signs of them affecting each other.

[littleindiangirl]

I keep rats and ASF's all in the same room, they all breed fine.

Could be an illness like a virus etc that is keeping them from being fertile. Or, they just need new animals.

[BallPython17]

Oh. Ok. My friend doesn't breed any rats or mice. He just heard someone say that. So he told me because he knew I was gonna breed mice and rats on the same rack

[cassandra]

I also breed both rats and mice in close proximity and haven't seen any adverse effects...

[marmie]

Today my friend told me that if I have a mouse colony in the same rack as my rat colony, the rats wouldn't breed because they smell the mouses scent. Is this true?

I've heard that before too from a rat breeder at a reptile show. I've never had any luck breeding mice and I thought it was because they were in the same area with the rats.

Good to know others haven't had a problem.

[BallPython17]

So this is a weird case.

[truthsdeceit]

I own both mice and rats, I haven't bred the rats yet but my mice produce a litter every 2 weeks just like always.