http://www.activistpost.com/2013/04/duke-professor-suggests-simple-solution.html
You can also boycott the mainstream meat market and only buy form a credible source. That's what we do, not to mention that we no longer do red meat. I don't even eat turkey anymore. Just chicken, and that select seafood, very occasionally.
Of course if you continue to support this industry, I hate your guts.
Then again I probably hate your guts anyway, but still. . .