Mean microscopic intestinal lesion scores and prevalence of Campylobacter colonization were not statistically different between the two groups but the drug-free program was associated with higher Clostridium perfringens isolation rates.
Mean microscopic intestinal lesion scores and prevalence of Campylobacter colonizationwere not statistically different between the two groups but the drug-free program was associated with higher Clostridium perfringens isolation rates.