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Serum C-reactive protein levels for tylosin- and sham-treated groups at 0, 5, and 12 d after initiation of therapy. CRP levels did not differ between groups at either 0 or 5 d, but day 12 levels differed significantly (*, P = 0.029, Wilcoxon rank-sum test) between tylosin- and sham-treated animals. Data are presented as mean ± SE.
