Minnesota Valley Humane Society

Choosing the second dog:

• Generally, the best second dog is one that is SMALLER, YOUNGER, and the OPPOSITE SEX of the first dog.

• It is rarely a good idea to add a puppy to a family that has a geriatric dog. The older dog will not tolerate the puppy’s high activity level. This can cause dog aggression in both dogs.

• Sometimes dogs prefer other dogs of the same breed.

• If you have a smaller dog and want to get a larger dog, it is best if the second dog is older than the first.

• A good rule of thumb is the smaller of the two dogs should be at least half the weight of the larger dog.

• Just because a dog does not like one dog does not mean it is dog aggressive and will not like any other dog.

• There are some dogs that are quite dog aggressive and/or should be the only dog in the home.

The introduction

• Both dogs should be on leash, each held by a capable adult. An introduction should always be done in neutral territory. At MVHS, introductions can be done outside or in the playroom. NEVER in the lobby.

• It’s best to take the two dogs for a walk together, before allowing them to sniff each other. Sniffing should go on for no more than two seconds before you call the “sniffer” off the “sniffee”.

• If you see a dog’s body stiffening, separate the dogs. If you see any type of aggression, immediately call the dogs away from each other instead of dragging them away. NEVER get between two dogs who look like they’re about to fight, because you could get bitten accidentally.

• A good sign is if the dogs go into the play bow, which is when the dog's rear end goes up, her front paws go down and her tail wags.

• Younger dogs will adapt more quickly to a second dog.

• Well-socialized dogs will adapt more quickly to a second dog.

• Just because the introduction went well at the neutral territory (MVHS), doesn’t mean there won’t be problems at home. This is due to territorial issues. You can reduce the number of “triggers” by limiting the number of toys, treats, etc, until the dogs learn to adapt to each other.

• Adding a second dog isn’t always easy. Expect problems. Expect growls - that’s how dogs communicate their dislikes. Be pleasantly surprised if there aren’t problems. Give the dogs a few weeks to adjust to each other. It may be a difficult start, but in the end it is usually worth it!!