Mandy is 5 and after her first litter she is agressive to other dogs if she is on the leash only. She also was fine with people prior to her first litter.
Now she will snap if anyone gets near her daughter Chelsey. She is fine alone but with Chelsey she get protective.
I too tried everything and think it is a personality thing with some dogs.
Have you tried her off leash with strangers as I was told they are more agressive in a carrier a little less on a leash and sometimes not at all off leash. You might want to try it and see. It is what happens with Mandy. I found that at an off leash dog park she loves everyone and has no agressive issues at all.
If you have an off leash dog park try it. |