Discover How Your Beef is Really Raised--Part 3 of 4http://articles.mercola.com/sites/articles/archive/2002/04/24/cattle3.aspxPart 3 of 4 [ Part 1 | Part 2 | Part 4 ] By Michael Pollan What keeps a feedlot animal healthy -- or healthy enough -- are antibiotics. Rumensin inhibits gas production in the rumen, helping to prevent bloat; tylosin reduces the incidence of liver infectionenCommunityServer 2008.5 SP1 (Build: 31106.3070)