title: Some measurements of protection against paratyphoid Salmonella and Escherichia coli by competitive exclusion chickens.
mesh_terms: D000818:Animals; D002432:Cecum / Q000382:microbiology; D002645:Chickens / Q000382:microbiology*; D002988:Cloaca / Q000382:microbiology; D003426:Crop, Avian / Q000382:microbiology; D004926:Escherichia coli / Q000254:growth & development*; D004927:Escherichia coli Infections / Q000517:prevention & control / Q000662:veterinary*; D006863:Hydrogen-Ion Concentration; D011201:Poultry Diseases / Q000517:prevention & control*; D012475:Salmonella / Q000254:growth & development*; D012481:Salmonella Infections, Animal / Q000517:prevention & control*; D012486:Salmonella typhimurium / Q000254:growth & development