Originally Posted by Jen
you mean to another pure breed munchkin?? or just another pure bred in general? I dont know why you would want to breed it to another purebred cat of a different and create "mutt" kittens. the kittens wouldn't be purebred, they would just be mixes. Assuming you mean to another munchkin, then I really don't know. Munchkin is a mutation, i can't imagine breeding 2 cats with genetic mutations together would be a good idea.
Using purebreed cats to develop a new breed is quite common. With the bengal; American Shorthairs, Egyptian Maus, and moggies used to be allowed outcrosses. With the Savannah, orientals are common outcrosses as well as moggies and egyptian mau's. These breeds are chosen for a particular feature they want to pass on and because you know what you are getting with a purebreed vs. a moggie which can be a little chancy.
I thought I would look up the breed standard to find out what the allowable outcrosses are and you are correct. The breed standard for TICA states:
"Domestic longhair/shorthair, not of a recognized breed."
So it seems the Tiffanie would not be a good idea if you want to go to standard. I'm actually a little surprised by this. What do people think? They are not yet recognized by the CFA but that is to be expected.http://www.tica.org/pdf/standards/mkbrdgrpstd.pdf