Is it for breeding maggots, is the object under the lights rotting meat?
This is the closest answer. This is the "artwork" called "a thousand years" by Hirst. This is the description:
Flies happily buzzing around in a glass cube only to finally die. The floor is covered in dead flies. Maggots in a breeding station contained in a white cube are fed with sugar water and metamorphose into flies. A second adjacent glass cube contains a rotting cow`s head which the flies feed on. The flies which accidentally touch the electrocutor get killed.
On the glass there are small holes so people can smell it.
