Puppy in a cage on the market (Cao Bằng, Vietnam)
The nearby market shop was selling dog meat (a delicacy in Vietnam). Therefore I think those puppies are probably destined to become "food dogs", not pets, i.e. they are bought as pet, then bred into adult dogs and eventually eaten as meat once they are adult (e.g. just like piglets).
I did not include the photos of dog meat shops in my Vietnam Set, but you can see them in my photo-documentary about eating dog meat for dinner that I also took in Vietnam: "Thịt chó" means eating a (hot) dog - literally. But be advised that those are very GRAPHIC photos and not advised for children.
This photo is part of a series called Thịt chó: eating a (hot) dog. A lots of interesting comments and reactions have been posted on the various photo sites where this series has been published.