For a very efficient slaughter process, visit the website of Horsens slaughterhouse.
Other slaughterhouses:
http://www.toennies.de/en/index.php
http://www.vionfood.com
http://www.eichenhof.net/ à is only in German
http://www.westfleisch.de/ à is also still in German
Fipso Industry (cooperative)
Example of a society of slaughtering cutting