What is doggie death row?

Hello,

So "doggy death row" is supposed to be the place where dogs are killed when they are too aggressive or if the dog kills someone else pet / domestic animals.
It refers to the death row, witch is the place where people are killed in jail after a crime.
(Hopefully some country think the other way but it's another question ;))

Source : http://cbs4.com/video/?id=79932@wfor.dayport.com