Straight off the bat you should be correcting your dog's growling and/or snapping with a firm “no” at the onset of the behavior. When he stops growling, reward him with a “good boy”, or in the beginning, a treat if it's handy at the exact moment of training so that he knows what he is being rewarded for.
A dog's aggression can lead to a bad outcome if your dog bites someone. The good news is that a growl or snap is your dog's way of communicating a waning—and your dog is choosing to warn you instead of biting.
Stop whatever it is you're doing or the person/animal eliciting the growl is doing. If you know that your dog growls right before a bite, then move away and get safe. If you know the growl doesn't mean a bite is imminent, stop what you are doing.
Dogs will give a warning growl in situations involving things like resource guarding, stranger danger, feeling cornered, or feeling stressed. Dogs use these warning growls to communicate to you or another animal to “back off” because they are uncomfortable.
The safest and most effective way to treat an aggression problem is to implement behavior modification under the guidance of a qualified professional. Modifying a dog's behavior involves rewarding her for good behavior—so you'll likely be more successful if your dog enjoys praise, treats and toys.
Is training an aggressive dog possible? Yes. Aggression in dogs, whether it be toward a dog's owner or other dogs, is a serious behavior that should be adjusted with the help of a professional dog trainer.
For a dog who is acting out of fear or frustration (for example, a dog who is barking and lunging on leash), using the word 'no' to stop the behavior without helping to alleviate their fear or frustration will often lead to an escalation in behavior, such as growling, air snapping, or biting.
Aggression is a normal part of the way all animals behave. Often people only consider aggressive behaviour in a dog to be a problem when it reaches the extremes of biting, but it can include lesser degrees, such as “grumbling”, growling, snarling, teeth baring and snapping at the air without making contact.
Aggression in dogs can be due to guarding territory, resources, or a family member; fear; frustration; prey drive; or pain. In all of these situations, a dog may be pushed too far and can transition quickly from reactive, fearful, or guarding behaviors to being aggressive.
Will my dog outgrow the aggression? Puppies may go through a biting phase that they will often outgrow. Unfortunately in most cases, true dog aggression often escalates as the dog ages. While it may be natural to make excuses, all dogs are capable of causing serious harm.
If your dog has bitten someone, it's natural to question whether you can ever trust them again. The good news is that in many situations, a dog that's bitten can go on to live a long and happy life with no other incidents.
A dog might growl to threaten another dog, or it might be a response to feeling cornered. Growling is also a common symptom of resource guarding. An injured dog will often growl to keep others at bay. In these cases, and more, growling indicates something is bothering your dog.
Most dogs assume a neutral or submissive role toward people, but some dogs will challenge their owners for dominance. A dominant dog may stare, bark, growl, snap, or even bite when you give him a command or ask him to give up a toy, treat, or resting place.
“If your dog whines, barks, paws at you, or nudges you to get affection, this means that they don't respect your personal space and they won't listen to you in other areas of training and leadership.” This one may be tricky for dog owners.
Act like the alpha of the back and show him who is boss. Look him/her in the eye: When you give a command, look straight at your pet. Make sure he can see that you mean business and that it is not a command to be disobeyed. Always hold eye contact with your pet, no matter how big or small he or she is.
When you hear a dog growling, it can be very frightening. That's because growling is often the first sign of aggression seen from a dog. It is a warning that a dog might bite, so it's important to be very careful near a growling dog.
In most cases, the best way to get a reactive dog ready for socializing is to slowly expose them to their triggers in a controlled environment and reward them with natural dog treats until they no longer react so strongly.
Growling is your dog's way of begging you to stop what you're doing and move away. It's not a challenge to your hierarchical status in your home. Dog body language exists to help them stay alive by avoiding confrontation with other creatures because confrontation is risky!