I have a l0 week old male GSD from working bloodline father and mother are both police dogs. He is very aggressive with company, strangers, and the vet. Its seems like the only people he likes is me my wife, daughter, and brother who lives with me. He will start growling as soon as someone comes in my house and watch them the whole time. If they get close to him or move around the house he goes after them. Last week i took him to the vet for a checkup and even after trying to offer him a treat he refused it and tried to bite the vet. She said she never seen a puppy that young act like that. I have a 8 year old female that ive had since a puppy and i did not experience that with her.I plan on getting the dog protection trained by a professional but they wont take him till hes 6 months. Is this behavior dominance or just instinct. Should i correct it any advice would be appreciated.

Todd, I'm bumping this for you...
Working dog folk, what do you make of this pup?

Todd, you've had the dog two weeks or so? Have you quarried the breeder about how the dog was socialized previous to you taking the dog?
Off hand I'd say the dog's reactions are fear based as opposed to any dominant behavior. And it sounds like the dog has already been mishandled.
The first thing I'd think about doing (as soon as it was save) would be to take the dog out to some populated area like a park or shopping mall, someplace I could stay on an outside perimeter. Get the dog used to seeing people and work my way in, with the end being able to walk among the crowd with no reaction from the dog.

That doesn't mean allowing the dog to be put upon by people wanting to pet the animal, only to get the dog used to the idea that people are not necessarily out to get him.

In the house with company, I wouldn't allow them to approach or force the dog to accept any petting from, that to him are, strangers. But I'd keep him at my side on a tether.

Finally I'd have a talk with the breeder, try to get a handle on how the pup had been treated before you came into possession.

If my dog isn't learning, I'm doing something wrong.
Randy

I have seen one or two that are the exception, but Randy may be right. It's hard to tell from a post if it's fear based, but it's a good assumption based on age alone. Like I said, I have seen one or two that were the exception, but these dogs are 1 in 1,000,000 and it's kind of doubtful that this pup is one of them. How is he bred?

His mother and father are both police dogs and are czech imported bloodline. His father has 49 apprehensions with a bite. When we picked him up we got to see the father and he was a very calm and confident dog. It looks like hes from an excellent bloodline.

I'm going to bring him to a trainer that owns quality dogs kennel http://www.quality-dogs.com. I'm currently doing all the basic stuff like sit, stay. They wont take him till he is 6 months old.I want to use him for home protection and maybe see if he's capable of showing in schutzhund.

Ummm,
Is that his web site? That's it? Was Quality also the breeder of your dog?
Does this guy have any creds. at all?

You speak of the pups sire and his accomplishments, my hats off to him and his handler. BUT, does he pass on anything? Even then thats only half the equation, what of the dam?

So far I have to stand by my original feeling about this dog.

Randy

Todd, between now and 6 months there's a lot you can be doing w/ this pup in addition to the socialization tips that you have received.

Invest in this DVD to get you pointed in the right direction:
How to Raise a working Puppy
Here's a free e-book that will be useful also:
Puppy Packleader

I don’t want to malign your breeder, the sire, or your trainer, but like Randy, I stand by my post. At his age this behavior is inappropriate for the type of dog you describe. A confident pup would be standing there with a happy look on his face and not letting these strangers faze him and to do any sort of bite work on a dog, you need a very stable pup. The pup you describe is either nervous and acting out before the evils of the world can get him (this could have been reinforced with his littermates or other early experiences as well as his time with you) or is over the top aggressive (unlikely at this age, and not what you want for a dog that will have to be in public much).

Two great dogs can throw anything. We are just stacking the odds in our favor when breeding, it may work or it may not. That is not to say that this is a bad pup, only that you have a little more work cut out for you.

As for the training (I know that was not your original question&hellip, if Schutzhund is what you are thinking of doing, then start looking at and visiting some clubs. The trainer you listed has only talked about getting a B on two dogs, nothing more in the field of Schutzhund. He lists no other credentials of value for what you are describing. He may be great, but you could get 20X the training for the fees he charges. Visit a couple of clubs (there are a lot in the Southern states, out here the closest is 100 miles away from me) and start getting that pup socialized. At a club your pup will be worked on some basic rag/tug work to lay a foundation, tracking can be started and some basic obedience.

Have fun with your pup!