Figure 1.
Proportion of resistance to (A) erythromycin, (B) tetracycline, or (C) erythromycin and tetracycline in fecal enterococci isolates collected across sampling days. a,bMeans within a day with different superscripts differ (P < 0.05). ANT = 330 mg monensin + 110 mg tylosin/d; eXPC = 7 g XPC·steer−1·d−1 encapsulated with 9 g capsule material.