"The more patient you are, the better your chance of success," Humane World for Animals says about introducing a new dog to the ones you have. The AKC's breed page gives the Dutch Shepherd a 3 out of 5 for Good With Other Dogs, the middle of a scale that runs from "Not Recommended" to "Good With Other Dogs." The same page says the breed "has retained its herding instinct for which it was originally developed." If there's already a dog or a cat in your house, the first weeks matter. Here is how to plan the first meeting, run the first weeks, and introduce a puppy to a cat, sourced to the AKC and Humane World for Animals.

What the AKC's score tells you

The AKC describes Good With Other Dogs as "how generally friendly a breed is towards other dogs." It adds: "Dogs should always be supervised for interactions and introductions with other dogs, but some breeds are innately more likely to get along with other dogs, both at home and in public."

In plain terms, a 3 is not a warning and not a promise. It means the introduction is up to you. A Dutch Shepherd puppy can grow up alongside another dog, but the AKC's own guides say that takes a plan, supervision and time.

Before the puppy comes home

Start with the dog you already have. The AKC says "it's important to be honest about your adult dog's temperament and level of training." Veterinary behaviorist Dr. Valli Parthasarathy, quoted by the AKC, puts it this way: "Even though you may have a dog who gets along really well with puppies, it doesn't mean they will get along with a puppy in their own home. It's very different to have a puppy visiting you vs one that is there 24/7."

The first meeting: outside, on neutral ground

The AKC says the first meeting should be "in a neutral place," not inside your dog's home. One option it suggests is to take your dog along when you pick up the puppy, with each dog in its own crate on the ride home. If you can't bring your dog along, the AKC says the dogs "should still meet outside of the home and walk in together." Then walk them around on leashes in the front yard and go inside together. "An unknown puppy barging in the front door can seem like an invasion to even the friendliest, most mellow dog."

Humane World for Animals uses the same idea for any two dogs, with a walk:

Azul and Dabo, Dutch Shepherds, lying side by side on the carpet at home in bandanas
Azul and Dabo at home. Two dogs in one house is a relationship you build.

The first weeks at home

The AKC says puppies "are still developing their communication skills" and "don't understand the rules set in place by adult dogs." A puppy looks for someone to play with, and the adult dog is "the next best thing. Your dog may or may not appreciate this!"

Growls, play and who does the teaching

"Don't reprimand the adult dog for growling at the puppy," the AKC says. A growl is how an older dog tells a puppy it has "crossed the line," and the AKC says that's acceptable "as long as the adult dog doesn't make inappropriate contact and injure the puppy." If your older dog starts getting agitated, separate the dogs or redirect the puppy before things get out of hand.

Play can fool you too. "Just because two dogs are playing or appear to be playing doesn't mean they are comfortable," Dr. Valli says. She warns about "defensive play," where an older dog plays only to get a pestering puppy to stop. Watch who starts the game.

And don't hand the training to your older dog. Dr. Valli calls the idea that dogs can work out their issues by themselves one of the big myths. She explains that puppies often aren't socially savvy enough to recognize when an older dog has had enough. If your puppy plays rudely, step in and redirect it yourself. Our puppy biting guide covers teaching a soft mouth.

Watch for the teenage shift

An older dog that puts up with a young puppy may not put up with a teenager. Dr. Valli says that when puppies hit puberty, between the time they're 6 months to a year old, an older dog may become less tolerant of their behaviors. Keep watching body language as your puppy grows, and separate or redirect when either dog looks uncomfortable.

Dabo, working-line Dutch Shepherd, sitting calmly on lead at his handler's side on a brick path
Dabo on lead. A sit and a leash are your first tools with a cat in the house.

Introducing a puppy to a cat

"Not all dogs will get along with cats, and not all cats will enjoy life with a dog," the AKC says. "However, puppies that were socialized with cats will be more comfortable around cats as adults." The AKC also says "chasing is an instinct for dogs." For a breed it says has kept its herding instinct, we'd plan the cat introduction as if your puppy will want to chase, and train so it never gets the chance. The AKC's steps:

Give your cat a permanent dog-free room behind a baby gate or a cat door, with its litter box, bed, water, toys and a scratching post. The AKC also suggests shelves or tall cat trees for escape, and feeding the cat where the dog can't reach.

A second AKC article, by Anna Burke, says dogs chase cats "not because they dislike them. It's simply prey drive at work, a natural instinct that takes training and socialization to override." It also warns that "large dog breeds with strong prey drives may injure cats," and lists three safety steps: a leash during introductions, escape spaces for the cat, and a crate or separate rooms whenever you're not home to supervise. The good news, from the same article: "Puppies and kittens introduced at a young age are more likely to accept one another."

When to get help

Humane World says: "For help with introductions that don't seem to be going well, contact a professional dog trainer or animal behaviorist." The AKC suggests a trainer who uses positive reinforcement, even before the puppy comes home. If you see any avoidant or aggressive behavior between your dogs, Dr. Valli recommends getting professional support sooner rather than later.

The question to ask before you apply

A puppy in a house with another dog or a cat means gates, crates, separate meals, short supervised meetings and a lot of rewards for calm, and it can take weeks or months. Our application asks you to describe your home and how many hours the dog will be alone on a weekday. If there's a dog or a cat in your house, tell us about them, including how your dog does with puppies.

The short version: the AKC rates the Dutch Shepherd 3 of 5 for Good With Other Dogs, so the introduction is up to you. Be honest about your current dog first. Meet on neutral ground, walk together, and supervise every interaction at home. Give your older dog breaks and don't let it do your training. With a cat, go slow: scent first, then a gate, then a leash, and never leave them alone together until you're sure.

More for the first months: socializing a puppy, crate training and teaching an off switch.

Sources