Sexing rats

[jwk811]

Is it possible to sex rats like a day or so after they are born? I'm going to need to freeze the babies very young because my snakes are still small. But I want to keep more females then males for the next breeding. Can you tell the difference at this age?

[Emilio]

I've had trouble sexing them when they are very small maybe this can help.

http://www.ratz.co.uk/breeding.html

[frankykeno]

Google is our friend!

http://www.ratz.co.uk/sexingrats.html

[Emilio]

Holy moly we did it at the same time Jo

[Shaun J]

And the same site! Weird...

[Emilio]

And the same site! Weird...

I guess it's the best site we all have found for pic's and good iinfo on rat's.

[jwk811]

ya i saw that site already.. i sill couldnt tell the difference with the pups

[frankykeno]

LOL that is odd Emilio! It is a great site though I use it a lot, one of my definite favorites! Actually most of my favorites folder for my rat colony comes from pet/show rat breeders but they have some great information there I can translate into use with my breeder/feeder colony.

[recycling goddess]

males have their two "holes" farther apart while females have them closer.

it's much easier to sex them when they are older.

[recycling goddess]

and on the page jo gave you: http://www.ratz.co.uk/sexingrats.html

you can see that the boys have testicles from birth, while the girls have nipples and no testies.