Colonization of the Porcine Gastrointestinal Tract by Lactobacilli

Karl Pedersen, Gerald W, Tannock

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Abstract

Eight strains of lactobacillus isolated from the porcine gastrointestinal tract were tested for their ability to adhere in vitro to cells collected from stratified squamous epithelium in the digestive tracts of newborn piglets. Piglets were inoculated with individual strains, and their digestive tracts were sampled at intervals to determine the colonizing ability of the lactobacilli. The results of the in vitro test did not predict whether a lactobacillus strain would associate with stratified squamous epithelium in the piglet digestive tract, but epithelial association in vivo appeared to be an important factor in the maintenance of lactobacillus populations in the tract. None of the lactobacillus strains used as inocula was numerically dominant in the tract 7 days after inoculation of the piglets with a single dose of the bacteria.
Original languageEnglish
JournalApplied and Environmental Microbiology
Volume55
Issue number2
Pages (from-to)279-283
Number of pages5
ISSN0099-2240
DOIs
Publication statusPublished - 1989
Externally publishedYes

Keywords

  • Animals
  • Bacterial Adhesion
  • Digestive System
  • Esophagus
  • Female
  • Lactobacillus
  • Microscopy, Electron, Scanning
  • Swine
  • STRATIFIED SQUAMOUS EPITHELIUM ASSOCIATION
  • Artiodactyla Mammalia Vertebrata Chordata Animalia (Animals, Artiodactyls, Chordates, Mammals, Nonhuman Vertebrates, Nonhuman Mammals, Vertebrates) - Suidae [85740]
  • Eubacteria Bacteria Microorganisms (Bacteria, Eubacteria, Microorganisms) - Regular Nonsporing Gram-Positive Rods [07830]
  • 02506, Cytology - Animal
  • 14004, Digestive system - Physiology and biochemistry
  • 31000, Physiology and biochemistry of bacteria
  • 36002, Medical and clinical microbiology - Bacteriology
  • Ingestion and Assimilation
  • Cell Biology
  • Infection
  • Physiology

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