Corah, L.R.Busby, W.D.McKee, R.M.Kiracofe, G.H.2011-02-082011-02-082011-02-08http://hdl.handle.net/2097/7151Fifty percentage Simmental bull calves were fed either with or without Rumensin. Although Rumensin improved gain by 9.2%, it had no effect on sexual development.BeefGrowthSexual developmentBullsConference paper