I have 2 dachshunds that are 10 years old and 12 years old, and I want to integrate a lab puppy into the house in about 2 months. We recently went to a lab rescue to try to find a lab there that would fit our home. During a home visit, a lab was brought to see how our dogs would react to the new guest. When each of the dogs were by themselves, they treated the lab that visited pretty well. Lots of barking, but were somewhat calm when they were next to each other. However, when both of the dogs were next to the lab it was a different story they might have both been ganging up on the lab and my 12-year old snapped at the lab. They told us that with our household (Dogs have been living here for 8 years) that integrating an adult lab would be difficult, and that getting a puppy that was around the same size of the dachshunds would be a better idea.
I was thinking about doing more socializing with my dogs, but I didn't know where to begin. I've read that after the initial 5 weeks to 3 month mark is when the best socializing period is with a dog, and I have read about the difficulties with 2-6 year olds but not with a senior dog. Ive also considered introducing the puppy VERY slowly to them one by one, using leashes and such to have full control of the situation. Is their anything else I can do? (Don't really have A lot of time to do an obedience course, and also don't know how much that will help)