group was .47 mg/mL and average intake on the last day of testing was 4.91 g/kg ethanol. Mean BEC in the two-bottle group was .12 mg/mL, and intake averaged 2.98 g/kg. BEC and ethanol intake differed significantly in the single-bottle versus two-bottle groups [F(1,36) = 5.6 and 9.9, respectively, p < .05]. Only 3 of the 20 mice in the two-bottle choice group had detectable BEC (>.05 mg/mL), whereas 15 of the 18 mice in the single-bottle group had detectable BEC values. Total fluid consumption also differed significantly between groups. The two-bottle group drank 1.15 ± .11 mL fluid, whereas the single-bottle group drank .71 ± .06 mL [F(1,36) = 11.6, p < .01].
