Colonization resistance of the digestive tract and gastrointestinal transit time in SPF mice.
The gastro-intestinal colonization resistance to Escherichia coli was assessed in individual CBA/Rij, C3H/StZ and Swiss/Cpb:SE mice. Gastro-intestinal transit time was determined by feeding small steel balls and x-ray examination of sequentially collected faeces. No correlation was found between transit times measured on 3 subsequent days, nor between them and colonization resistance.
D000818:Animals; D004064:Digestive System / Q000382:microbiology*; D004926:Escherichia coli / Q000302:isolation & purification; D005243:Feces / Q000382:microbiology; D005769:Gastrointestinal Motility; D005856:Germ-Free Life; D008297:Male; D051379:Mice; D008815:Mice, Inbred Strains / Q000382:microbiology*; D013047:Specific Pathogen-Free Organisms