What separates the two feedlots profiled here? Geography – 500km of driving, a stone’s throw in US terms. Animal type – Angus dominates both operations. Diet – both are heavily corn-based, but we’re getting warmer.If you’re a US feedlot heifer or steer, chances are you’re getting a helping hand. You and 95% of your contemporaries are treated with and fed hormones and antibiotic growth promoters, prohibited here in the EU.