Riley, Jack G.Newby, S.L.2011-03-042011-03-042011-03-04http://hdl.handle.net/2097/7885Cattlemen's Fate in '78 is known as Cattlemen’s Day, 1978Soybean oil or corn oil when fed at 0, 2, 4, or 6% of the ration did not significantly reduce methane production or alter the ratios of volatile fatty acids. Soybean oil was superior to corn oil in reducing methane, and soybean oil, produced a more desirable acetate:propionate ratio. Rumensin was compared at levels simulating 0, 15, and 30 grams per ton of complete ration. Rumensin at either concentration significantly reduced methane and significantly improved the acetate:propionate ratio.BeefSoybean oilCorn oilRumensinMethaneVFA productionConference paper