After seeing Dominion I was looking for sources that Dominion was not showing isolated incidents. After a few weeks I stumbled upon https://www.ongehoord.info showing https://vimeo.com/816340446.
There is a research group "Ongehoord" active in The Netherlands and Belgium, researching the well-being of animals in the bio-industry using hidden camera's. I hope it might be of help to someone.
