[floren]

There's kind of a barrier to entry for the layman because feedlots are generally out of the way, and they're not usually in the business of giving tours--they're busy places with lots of heavy machinery running around. It's a fascinating business, but you have to be ready for 6.5 day work weeks :)

One way to learn a bit more is from the actual industry's magazines, like Feedstuffs, which focuses particularly on livestock feed. Here's an article picked from the top of their beef nutrition section: https://www.feedstuffs.com/nutrition-health/byproduct-feeds-...