FIG 3 .

Concentrations of butyrate and total short-chain fatty acids (SCFA) measured in feces from mice inoculated with PBS (CR−) or C. rodentium (CR+) via gavage and rectally administered PBS (BU0) or butyrate at concentrations of 80 mM (BU80) and 140 mM (BU140). Samples were collected on days 14 and 21 postinoculation (p.i.). (A) Butyrate concentrations in feces collected on day 14 p.i. (B) Butyrate concentrations in feces collected on day 21 p.i. (C) Total SCFA concentrations in feces collected on day 14 p.i. (D) Total SCFA concentrations in feces collected on day 21 p.i. Vertical lines associated with histogram bars represent standard errors of the means (n = 4). #, P ≤ 0.073 (between infected and noninfected mice). *, P ≤ 0.020 (between infected and noninfected mice).