The effects of increasing butyrate concentrations in lambs fed 85% concentrate were determined. Treatments: no butyrate (CONT), 1% butyrate (BUT1), and 2% butyrate (BUT2). Fecal scores, body weight and feed intake were recorded by pen. There were no treatment by day interactions (P= 0.9363); however, lambs fed BUT1 had the lowest fecal scores (P= 0.0144) and fecal score differed by day (P< 0. 01). Improved fecal scores corresponded to enhanced lamb performance and ameliorated acidosis.