If your dog barks when left alone, may be due to a problem of boredom or separation anxiety problem. In both cases the most appropriate therapy is to call your attention to be distracted and leaving him with this we can get many toys that are fun.
The toys selected should fulfill certain functions, which are not toxic, and ntretengan the dog and not lose their interest quickly. We also need to change these toys so the dog does not get bored, we must also be given as a prize when we leave, and thus will be more entertaining and not adopt destructive behavior.
Five guidelines to educate1. Never pet or soothe your dog if he barks out of fear . This will reinforce his behavior, since any positive reaction he gets reinforce their behavior and make it harder to control the barking. Similarly, if your dog barks asking a toy, a cookie, get a walk, etc.. Do not give in to their demands and not reward him until he is silent.
2. Teach your dog the word 'Silence' or 'No' so you know what to do. To teach 'Silence' or 'No' to your dog you need to produce a negative stimulus that can be obtained with a sprayer full of water with lemon juice. When your dog barks and should not do it, sprinkle your mouth and say 'Silence' with a strong voice.
4. Never hit, mistreat or keep your dog's mouth closed. This will only teach your dog to be afraid and can cause more problems as he barks out of fear or even to attack. The proper way to reduce the barking is to identify the cause and teach the dog that is not acceptable behavior.
5. Remember it is your responsibility as an owner teach acceptable behavior and suppressing undesirable behavior.