Custom slaughter has been huge and has built a lot of plants. When my grandfather bought our current plant, all it did was custom slaughter.
Things like livestock prices certainly have an impact. Now when we have very high livestock prices, especially for beef, custom slaughter isn't something that's in very high demand, because they get a very good dollar selling at auction, for instance.
Abattoirs have to have a diversified income stream. Otherwise they can't really survive the market price changes.