Adopted this dog .. Now he is attacking my other ones ...?

  I adopted this male boxer. NOT FIXED YET. HE GOES ON DEC 1st .... I have a female boxer and a female Chi/pom. I've noticed that he is VERY aggressive twards the others with toys, treats, and just the space in our house ... He is not like that when we bring them to the dog park ... They all get along very well there with toys. But at home he snaps at our other dogs and makes us very nervous .. . What can we do? Is it because he is not fixed yet? Please help.
It has nothing to do with him not being fixed. It sounds like he has something called possessive aggression. You need to hire a behaviorist ASAP to come in and work with him, and until then DO NOT allow him to have toys when he is in the same room with the other two dogs. Leave his leash on him at all times so that if he does start to be possessive over something you can easily remove him from the situation.



It would actually be best to keep him separated from the other dogs until you can get professional help.



Practice NILIF - "Nothing In Life Is Free."

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http://www.associatedcontent.com/article ...
1. call dog behavior training at the place you adopted him from if they dont got an try taking classes/call your vet.



2. It might be because he isn't fixed.



my dog is agressive towards things like food, treats, toys he is fixed. it's just how some dogs are. Maybe they been brought up in a bad home thats why i know my dog was that might be the problem.
Your shelter probably has a dog behaviorist on staff, give them a call.



A pet gate can keep the dogs separated inside the house. Neutering doesn't fix it overnight, the testosterone levels takeup to 2 weeks to shift down.
I would try, dog behavioral training. Call your vet, or the shelter you got him from to have them recommend you to one.
fixed has little to nothing to do with his behavior ...



You're the owner ... correct him for snapping at your other dogs and work on the resource guarding
He's fine in the dog park because he feels he's on neutral territory, no space or possessions to defend or guard, on even terms with the other dogs. He made that his 'job' in your house, but now that he's on neutral ground he can take time off from work and relax. pets question and answers,www.5d2d.com



It's the same reason dogs who are inside the front door looking out will bark, growl, and go crazy when they see other dogs pass by the house, but 9 times out of ten if you open the door and take them out to the street to meet the other dogs they go into tail-wagging, 'happy to see you' mode. We think it's aggression or hostility, but all it really is is frustration, because they feel dogs crossing their turf need to come up and introduce themselves and be accepted by the pack and that doesn't always happen.



Or that same dog that barked loudly from inside the house, when walking on the street past another dog's house, will exhibit more submissive behavior or even try to walk away faster when they're on the receiving end.



On your home turf you have a job, it's to defend it from strangers and make it clear through loud barking and physical intimidation that anybody who approaches needs to be accepted by you. On another dog's turf, you recognize that you need to show respect and watch yourself. On neutral territory when you feel only positive vibes from the other animal nobody has that chip on their shoulders and everybody can accept eachother and make friends without worries.
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They're very aware of when they're in what they consider their own turf, as opposed to neutral ground, as opposed to crossing through another dog's turf. You may not even realize some of the situations where your dog has 'claimed' a space and comes to think of it as their own. Their behavior will often change based on those circumstances. Their default instinct when going into a new space will often be to start trying to figure out where they are in the pecking order and what is theirs .



One of the first things he needs to learn is nothing is his, it's all yours. If he gets possessive with space, take him out of the space and put him back on an even plane with the other dogs. Don't pull them away and give up territory, what most people will instinctively do when one animal makes an intimidating gesture towards the other. Put the boxer on neutral ground where he no longer feels it's his job to ward off everyone else.



If he gets possessive with toys or treats, take them away and don't give them back until he shows submissive behavior. Don't pull the other dogs away from the situation and help prove to the boxer that it's his and he's right to defend it.

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It's the same as when you're dealing with kids: When the toy or the space becomes the center of the problem, YOU claim it until they figure out how to share and play nice. To hand it over to one side or the other just reinforces territorial and possessive behavior. To do nothing accomplishes the same result.