A knacker is someone who buys up old horses and then kills them for their meat, bones, or leather. Her horse was a show jumper whom the family rescued from the knacker's yard
A person who disposes of dead or unwanted animals (COD) The person who collects dead and diseased animals from farms in order to salvage any products of value (eg, hides and skins, meat for pet food) and dispose of the remains, usually to a renderer