Impact of Ceftiofur on the Dissemination of Resistant Enteric Bacteria in Finishing Swine
Ceftiofur-based products are widely used in finishing pigs in the US and
E.coli bacteria are found widely in manure but not with resistance genes, according to Dr Thomas Wittum of Ohio State University, leading him to conclude that antibiotic use alone is a poor predictor of increased resistance genes in bacterial pathogens.