Bob-tailed cur dogs

I read in the past that natural bobtail comes from the bull dog but I can't say I agree or disagree...I know the mt cur breed has quite a bit of natural bob tails...

I like the big mt curs but nowadays the average mt cur has been bred to be a smaller dog with small ears...so many appear to be crossed with feist dogs...

even the ones I raised were not full blooded because at the very beginning I bred a mt cur gyp to a brindle bmc...and I like to bob tail my dogs as a personal preference but I like tem born with a long tail...however a dog that appears to have a long tail may actually be a bob tailed dog...so you keep breeding it and you can get 2 or 3 pups born with bob tails...that is because the sire or dam appear to have long tails but missing one vertebrae makes the dog a bob tailed dog...

oftentimes when a pup is born with a very short tail it will look, walk and run funny...and I question there stamina...

those that keep breeding for the short tail will eventually get pups with spinal bifida so they say...

and like someone mentioned earlier...most cur dogs have a mixture of other breeds in them and that is one good reason so many are not registered...