Concentrations of antimicrobial substances in blood plasma and tissue samples.

<p>Values are given as median and range. Plasma levels of enrofloxacin, its active metabolite ciprofloxacin, erythromycin, and rifampicin were highest 3 and 5 dpi, whereas levels of azithromycin reached their maximum 10 dpi. Different letters (a, b) indicate statistically significant differences in antibiotic concentration in plasma and tissue between groups treated with or without rifampicin on the same day (<i>P</i> < 0.05, Mann-Whitney U-test).</p><p>Concentrations of antimicrobial substances in blood plasma and tissue samples.