title: Escherichia coli populations at various intestinal levels of steers.
mesh_terms: D000367:Age Factors; D000818:Animals; D000942:Antigens, Bacterial; D002417:Cattle; D002432:Cecum / Q000382:microbiology; D003470:Culture Media; D004386:Duodenum / Q000382:microbiology; D004926:Escherichia coli / Q000276:immunology / Q000302:isolation & purification*; D007082:Ileum / Q000382:microbiology; D007422:Intestines / Q000382:microbiology*; D008297:Male; D012007:Rectum / Q000382:microbiology
chemical_list: D000942:Antigens, Bacterial; D003470:Culture Media