I don't know much about Catahoulas, but I do know that vets in general are not experts when it comes to indentifying dog breeds. They may or may not know the breed's standard and a little bit about the breed, but they often don't know much else.
For example, most people don't seem to know that there is actually a variety of short-haired Collie, called the smooth-coated Collie. Same breed as the rough-coated Collie, different variety. I certainly didn't know that until I began researching the breed.

Cookies 'n' Creme (1998-2011) answered on 1/14/10. Helpful? / 0

I don't see catahoula, just like Bam Bam said mainly in your ears, they normaly have floppy hound like ears. Your fur looks like it is brindle in the pictures, houlas have mostly a merle pattern that is totaly different. You look like you mainly have chow chow in you. That would explain the curled tail, pointly ears, block head, body shape. So my best guess would be half chow. Mixed with something that has brindling maybe a pit, staffie, boxer and that second have is probably mixed with something else.

You almsot look like Bandit but he is black with a straight tale. :)

Bandit answered on 1/15/10. Helpful? / 0