Aflatoxin concentrations in TMR were below detection limits (10 μg of AF/kg of TMR) for all periods (n = 4). Aflatoxin M1 concentrations in milk and urine, AFB1 concentrations in feces, total bacteria count in urine, and AFM1 excretion and transference in milk data are in Table 4. Treatment × day interactions for AFM1 concentration in milk, urine, and feces are shown in Figures 2, 3, and 4, respectively.