Many older dogs will be upset, jealous, or even angry with a new puppy, especially if the older dog has been an only dog. It's going to be important to make sure the older dog gets lots (more than normal) of attention to alleviate potential hurt feelings.
Introduction of a New Pet
Bringing home a new puppy or another adult dog can trigger jealousy in your dog, and they may show signs of aggression toward the new addition. Your dog might growl at the new dog, guard your lap, or try to get in between you and your new furry family member.
Your dog is used to being your companion, and if there are other dogs that are taking you away, they are going to act upset, jealous, and even angry. This new puppy is also on their territory, and they may feel like their life is in jeopardy. This behavior is perfectly normal.
It can take up to one month for an old dog and new dog to really settle in and accept each other's position in the pack. If you want a second dog, you need to be ready to commit to this process and not panic.
Don't punish your dog for growling at the puppy. Growling is normal dog communication, and he is letting the puppy (and you) know he's had enough. Instead of punishing this important communication, calmly separate them.
Most dogs will welcome a new sibling, but it is not always smooth sailing. The furry family member you have now will face many changes when a new dog enters the picture and may feel a bit displaced. He may not like sharing his territory, toys, food, resting places, or humans.
You should expect that your older dog will not enjoy the puppy a lot from the age of 4 to 16 months. Around the 18 month mark many puppies slow down considerably and mature. Then your older dog will likely get along with the puppy much better.
If your dog is biting the puppy, causing injury, or acting inappropriately aggressive toward the puppy, you should seek professional help from a positive reinforcement behavior professional. Sometimes, it's difficult to know whether or not the older dog is behaving appropriately with the puppy.
More often than not, though, this behavior should not be deterred. The reason for this is simple: Puppies don't have manners. In fact, some of them can be downright annoying, especially to older dogs.
In dogdom, there's a turn of phrase called, "Second Dog Syndrome". This describes the process of adding another dog to the home quite well, but not necessarily in a positive light. As humans, we are bound to forget all of the time and effort it takes to raise a puppy right.
Whether they're coming from a shelter or breeder, every dog will have a period of adjustment as they get used to their new home. Your dog's behavior may be quieter than usual or feel "over the top." Some dogs deal with change by acting out while others shut down.
They're territorial
The first reason an older dog might attack or not be fond of a young puppy is that they are territorial of their space. Your resident dog views your home as their turf, and therefore, the new puppy poses a threat to that—a threat that your older dog is uncomfortable with.
At first, walk the dogs at a distance where they can see each other but are not too provoked by each other's presence. If the dogs are not showing any negative behaviors, reward them with treats just for seeing each other.
The jealous dog sees other people or pets as a rival for your attention and love. He tries to force himself in between you and someone else or another pet. He may challenge a spouse when they try to snuggle next to you on the couch or in bed. A jealous dog may attack another pet that gets too close to you.
If your dog is jealous, they may whine, bark, growl, or push other pets or people away from you. Dogs may get jealous because they don't want to lose your attention and affection to someone else. Training, playing with your dog one-on-one, and rewarding good behavior can all make a difference.
Aggression. Aggression from jealousy can be seen in a variety of forms including, growling, lunging, biting, and sometimes attacking. This behavior could come when you least expect it and can be directed at humans or pets.
Dogs appear to be one of the few species that might display jealous behaviours in ways similar to a human child showing jealousy when their mother gives affection to another child.
Licking is a natural and instinctive behaviour to dogs. For them it's a way of grooming, bonding, and expressing themselves. Your dog may lick you to say they love you, to get your attention, to help soothe themselves if they're stressed, to show empathy or because you taste good to them!
Just as humans stare into the eyes of someone they adore, dogs will stare at their owners to express affection. In fact, mutual staring between humans and dogs releases oxytocin, known as the love hormone. This chemical plays an important role in bonding and boosts feelings of love and trust.