I'm new to doberman-chat so could really do with some help and added advice. Currently I have a 13 month old male unneutered european doberman. He is in training to be a family protection dog (due to previous security incident) however needs to mature more before undergoing the 'protection' training. At the moment we and the trainers are solely focusing on obedience. We have 2 other small friendly pet dogs both male pomeranian (neutered. age 9) french bulldog (unneutered. age 3). Initially when the Doberman came home at age 9 months, he nipped/ bit the frenchie on 2 separate occasions inflicting no damage the first time then just a minor scratch the second. The frenchie is very jumpy and playful so we have been taking time to slowly introduce them however this was halted due to the frenchie needing to be on crate rest for a spinal issue. During this time we focused on The pomeranian senior dog and doberman very slow introducing them over a course of 2 months and they had been getting on well. over that 8 week period we initially started with both dogs on lead in the garden for a few minutes at a time with positive reinforcement when the doberman would not try and initiate play with the pomeranian (please note the pomeranian is senior and has no interest in playing with other dogs and likes to mind his own business) we then moved on to both dogs on lead within the house and eventually both dogs were able to be off lead with supervision. This had been going well for 4 weeks with zero signs of aggression or annoyance from either dog. During our usual morning routine, I had let out the pomeranian to head to the garden with the frenchie in my arms (due to his recovery). The doberman was also walking around having just come in from the garden which had been our typical routine for the past few weeks (I do not allow for the doberman to be off lead in the garden with the 2 smaller dogs) to my horror the doberman attempted to jump and bite the frenchie whilst in my arms which he was corrected for and unable to make contact. At this point the pomeranian had returned his own crate. The doberman then snatched the pomeranian from the crate and began shaking him like ragdoll. The doberman eventually released him after being restrained leaving the pomeranian with a fractured shoulder and muscle bite wound which required medical attention. I need some advice as to why he would attack the pomeranian whom he had pretty much become friends with. Our trainer has reassured us that this will be worked on and was also equally horrified and confused with the incident as since we have had the doberman he has never shown any form of aggression or interest in the pomeranian. He is also obedient with all commands such as sit, lay, wait etc/ The doberman is incredibly loving to myself, husband and family members who come to stay. He has never shown them any form of aggression. . He is protective of course when he may see people he is unfamiliar with on the property i.e gardeners in the garden. Open to all advice from those who have had similar situations and experience with dobermans.
