Well, I can't say that I've tested this out, or that I've seen very many slaughterhouses, but I would say no.
Simply put, the floor is bare concrete, the walls are covered with tin (for ease of cleaning) and the celing is about 20 feet high (not to mention that the slaughter room is rather squareish) and it almost always VERY loud in there (I'd say that Alan's 90-95dB very loud in his discussion of amp power is about right at times).
On the plus side, he does have 3 phase 220v power, and it IS right next door to the transformer station...
