I will admit that even I have lost myself in all the research pointing to the dark side of concentrated animal feeding operations. (epolicypace.blogs.pace.edu)
So one should look for animal fats from animals that are pasture - based and not crowded, confined animal feeding operations where disease and sickness must be managed in these factory farms. (healthimpactnews.com)
Modern animal feeding operations also often put very large numbers of cows, chickens, or other animals in close quarters, sometimes in a single building. (health.com)