title: Effect of cattle diet on Escherichia coli O157:H7 acid resistance.
abstract: The duration of shedding of Escherichia coli O157 isolates by hay-fed and grain-fed steers experimentally inoculated with E. coli O157:H7 was compared, as well as the acid resistance of the bacteria. The hay-fed animals shed E. coli O157 longer than the grain-fed animals, and irrespective of diet, these bacteria were equally acid resistant. Feeding cattle hay may increase human infections with E. coli O157:H7.
authors.affiliation: Department of Microbiology, Molecular Biology, and Biochemistry, University of Idaho, Moscow, Idaho 83844, USA.
authors.forename: C J
authors.initials: CJ
authors.lastname: Hovde
authors.forename: P R
authors.initials: PR
authors.lastname: Austin
authors.forename: K A
authors.initials: KA
authors.lastname: Cloud
authors.forename: C J
authors.initials: CJ
authors.lastname: Williams
authors.forename: C W
authors.initials: CW
authors.lastname: Hunt
mesh_terms: D000821:Animal Feed; D000818:Animals; D002417:Cattle / Q000382:microbiology*; D018592:Cross-Over Studies; D002523:Edible Grain; D004927:Escherichia coli Infections / Q000382:microbiology / Q000635:transmission; D019453:Escherichia coli O157 / Q000502:physiology*; D005243:Feces / Q000382:microbiology; D006801:Humans; D006863:Hydrogen-Ion Concentration; D006109:Poaceae