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Semilogarithmic plots of mean plasma concentrations of ceftiofur and desfuroylceftiofur versus time after intramuscular administration of ceftiofur sodium (2.2 mg/kg) in healthy calves (ceftiofur and combined treatment) and experimentally induced endotoxemic calves (Lipopolysaccharide+ceftiofur and Lipopolysaccharide+combined treatment).
