Our expert says:
Dog Behaviour Expert
Hi Dave, not sure if I am missing somthing. If your GSD not good with other dogs why take the risk of bringing in another dog?. If your GSD is good with the Alpha male, why not take the pup back to breeder - she is a member of your family and was there first.
When a dog is reactive to other dogs it is normally one of two reasons that have caused this:
a) no puppy socialization and possibly been taken home at 5 weeks of age (a commercial, not professional breeder)and
Fear is the number one cause of reactive behaviour - the dog does just not know how to cope and reacts accordingly, gradually getting worse as it finds that the reactive behaviour is effective.
This is a situation that can be often be resolved with a combination of TTouch, behaviour modification and rehabilitation, but does not always guarantee that a new dog would successfully be brought into the home, and that your dog has already killed the small dog next door, not something I would even consider.
I have worked with many reactive dogs and been able to assist them to accept other dogs around them but not necessarily live with them.
As I said initially, if the GSD is fine with the male - give the pup back to breeder and rather consider getting somebody in that does TTouch, Beh Mod and Rehabilitation and work with the dog you already have as part of your family.
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