How to Train Dogs Not to Be Vicious

• 1). Start with basic obedience training. Often, a dog exhibits aggressive behavior because he believes he is the pack leader, or alpha dog, and feels that his position is threatened. Most dogs prefer that their owner act as "pack leader" and readily submit when you demonstrate leadership qualities.
  
  Set clear expectations for your dog, and praise and reward him when he behaves correctly. Correct undesirable behavior with a firm verbal cue such as "no," and then redirect the dog by giving him something else to do. Remember that dogs are not born knowing our language and our rules.
  
  Do not yell at your dog, as he perceives this as "excited barking" and not a leadership behavior. Do not physically punish your dog. This will only worsen your relationship with him and may exacerbate aggressive behaviors. If his behavior is out of control, place him in his crate or a quiet room until he calms down.
  
  
• 2). Walk your dog daily. Sufficient exercise is essential for dealing with behavioral problems. If your dog reacts aggressively to other dogs and people, take him to a remote area to work on leash behavior.
  
  Keep your dog as active and busy as possible throughout the day. A tired dog is a well-behaved dog, whereas a bored dog will look for outlets for his pent-up energy. Choose breed-specific games for your dog, such as fetch for a retriever or tracking games for a hound.
  
  
• 3). Address specific aggressive behaviors as they arise. For example, nipping is a normal behavior for many puppies. However, if it is not corrected at a young age, it may lead to biting as an adult dog. If your puppy nips, tell it "no" firmly and give him an acceptable chew toy. Praise and reward him for playing with the toy.
  
  If your adult dog exhibits aggressive behaviors that are not readily controlled through behavior training, consult a professional as soon as possible. An animal behavior expert or trainer can help you learn effective techniques for dealing with your dog, and may recommend behavioral tools such as electronic collars.
  
  
• 4). Take your dog to a veterinarian for evaluation if his aggressive behavior continues even with the help of a professional. Many owners find that having a dog neutered or spayed helps decrease aggression. In some cases, a disorder such as hypothyroidism or a neurological problem causes aggression in dogs.