This is one type of "enclosure" used by puppy mills.

The typical way dogs in mills are housed. Note that there are two or three dogs in a cage designed for one.

Would you keep a young pup in a cage where there is loose wire for it to chew on??

This poor pup may face the same hard life as her dam - forced to breed too young and too often.

Do these look like healthy dogs to you??

Once again, too many dogs in a run down shelter not large enough for them all. Note that the one on the right looks to have a gash on it's forehead.