breeding.......

Question
QUESTION: Hello Joyce.  I have what may be a foolish question, but I honestly don't know the answer.  First, let me give you a quick background.

I have a full-blooded male Pug and a female Pit Bull mix.  They have just had puppies, and the mother has become very agressive towards people coming to look at the puppies.  She just bit her third person, and now we are not going to be able to keep her.

We were wondering if we could keep a female from the liter, and allow her (when she is grown, of course) to breed with her Pug father.  We were not sure what kind of relationships in dogs are harmful, or okay.  We were hoping to be able to do this, because that would make the future puppies more than 1/2 Pug, which of course they are 1/2 Pug now.  

What is your advice on this?

Thanks,

Derrick

ANSWER: The whole thing sounds like a recipe for disaster to me.

Pitbulls are carriers of mange and Pugs have more health problems and skin issues than most breeds.

If the female is unstable and aggressive, you have a very, very good chance of passing that trait on to the pups.  Bred back to the father will compound any and all problems.

Inter-breeding is done on two SUPERIOR animals of the same breed to enhance the breed. You may only get one or two pups that have the best traits of both parents, the rest of the litter will get the worse.  

My advise, sell all the pups on a spay/neuter contract and re-evaluate your program.

---------- FOLLOW-UP ----------

QUESTION: Thanks for your answer.  I probably should have said something a little plainer than I did, and reading back over my comments, I can see how it might have been confusing.

In regards to the mother, she is a very good natured dog.  There has NEVER been any agression towards anyone up until her protection of the pups.  All of the bites I mentioned have been in protecting her pups from what she felt was a bad situation, just like any mother dog would do.  And she is actually not a full-blooded pit, and has had no health issues at all.

Does this make a difference?

Answer
It's easy to make excuses when most females will protect their young, but there should never be people aggression ever.  A trusting, stable female will be alert when someone comes nears her pups but anyone should be able to handle the pups.  

Do you know the lines of your dogs?  What's back in the generations, back to the great grand dam and sire on both sides?   Just because your male and female aren't showing any health issues, they could be carriers of undesirable traits.  And they will come out in full force with a in-breeding.

Honestly, it would be a breeding that as a breeder, I personally would steer clear from.