We have just introduced a 5 month old puppy to our two 9 year old Labradors. It's only been a week. I knew our female Labrador (who was a rescue dog 6 years ago) was going to get jealous of this new puppy but our male Labrador (who we had from a puppy) is normally such a softie with all dogs that he meets. However both have been barking at him when we have supervised them all off the leads together in the garden. They are all ok when we take them out on walks but so far have not reached a compromise whilst in the same room of the house. Has anyone here used a dog trainer to help with this situation as considering this might be the best for all of the dogs.