Milk concentration in nine infected lactating cows' quarters with high (<i>n</i> = 10), mid (<i>n</i> = 10) and low (<i>n</i> = 11) production after eight infusions of ceftiofur hydrochloride at 24-h intervals, 125 mg/quarter, into all four quarters, plotted with MIC ₉₀ (0.25 μg/mL).

<p>Milk concentration in nine infected lactating cows' quarters with high (<i>n</i> = 10), mid (<i>n</i> = 10) and low (<i>n</i> = 11) production after eight infusions of ceftiofur hydrochloride at 24-h intervals, 125 mg/quarter, into all four quarters, plotted with MIC ₉₀ (0.25 μg/mL).</p

Mean-serum concentration (±SD) in healthy (<i>n</i> = 3) and infected (<i>n</i> = 3) cows administered eight intramammary infusions of ceftiofur hydrochloride at a dose of 125 mg/quarter each 24 h.

<p>Arrows indicate time of daily infusion of ceftiofur into all four quarters.</p

Milk concentration in nine healthy lactating cows' quarters with high (<i>n</i> = 11), mid (<i>n</i> = 12) and low (<i>n</i> = 10) production after eight infusions of ceftiofur hydrochloride at 24-h intervals, 125 mg/quarter, into all four quarters, plotted with MIC ₉₀ (0.25 μg/mL).

<p>Milk concentration in nine healthy lactating cows' quarters with high (<i>n</i> = 11), mid (<i>n</i> = 12) and low (<i>n</i> = 10) production after eight infusions of ceftiofur hydrochloride at 24-h intervals, 125 mg/quarter, into all four quarters, plotted with MIC ₉₀ (0.25 μg/mL).</p