Article #1 -If your dog is experiencing stress, whether it’s the loss of a companion, a change in its surroundings, there are things you can do to help. If your depressed dog is not being active or social, you may consider doggie daycare. This will create an environment for your dog to interact with other dogs.
If your depressed dog is experiencing a sense of loss of a companion or guardian, shower him with love and attention. Take time and visit a dog run, set up playdates, fun rides in the car, and just being around each other. This will help the depressed dog.
Yes, even dogs can become depressed. It is not uncommon to see a dog start acting differently when certain things happen. For example if someone who cares for them goes away, you may find your dog sitting at the door at the time the person always comes home staring at the door. When the person returns the dog is likely to return to normal behavior.
Symptoms of Dog Depression Your dog may seem mopey. S/he may be lethargic or slow moving. They may stop eating and may not drink enough water. The symptoms for dog Depression are strikingly similar to those seen in humans. Depression in dogs could be very dangerous especially if they stop eating or drinking enough water.
Causes of Dog Depression
Grief may be a trigger for pet Depression. If they have had a playmate for sometime and the other dog dies, your dog may try to act as if the other pet is there. They may be sad and mope around.
A change of environment where a dog is moved to a new home or put in a kennel may also cause your dog to feel depressed and stop eating or drinking. Returning home or getting used to the new home will likely see your dog's Depression start to lift.
Chemical imbalances typically in the brain may be to blame as well. Like humans there are chemicals in the brain that help to control mood. Treatment can be very effective for your dog. Sources: http://ezinearticles.com/?Treatments-for-Dog-Depression&id=675358 and http://www.thedogbowl.com/PPF/category_ID/0_226/dogbowl.asp