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Related Experiment Videos

Development of intestinal lactobacilli in normal piglets

S Naito1, H Hayashidani, K Kaneko

  • 1Department of Animal Hygiene, Faculty of Agriculture, Tokyo University of Agriculture and Technology, Japan.

The Journal of Applied Bacteriology
|August 1, 1995
PubMed
Summary

The development of intestinal Lactobacillus species in piglets shows distinct patterns from birth. Lactobacillus reuteri strains shift over time, with specific biovars dominating at different piglet growth stages.

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Area of Science:

  • Microbiology
  • Animal Science
  • Gastroenterology

Background:

  • The intestinal microbiota plays a crucial role in host health and development.
  • Lactobacillus species are key commensal bacteria in the gut, known for their beneficial effects.
  • Understanding the temporal dynamics of Lactobacillus colonization in early life is vital for piglet health.

Purpose of the Study:

  • To investigate the development and succession patterns of intestinal Lactobacillus species in piglets from birth to 45 days.
  • To identify specific Lactobacillus species and biovars colonizing the piglet gut during different growth phases.
  • To compare the Lactobacillus composition in piglets with that of their dams.

Main Methods:

  • Isolation and identification of Lactobacillus strains from piglet and dam faeces.

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  • Species and biovar level characterization using carbohydrate fermentation profiles.
  • Longitudinal sampling from 1 to 45 days post-birth across multiple litters.

    • Main Results:

    • A distinct developmental pattern of four Lactobacillus species and 20 biovars was observed in piglet faeces.
    • Lactobacillus reuteri colonized piglets on day one, with specific biovars (B, C, E) dominating early, followed by biovars F and G, and a return to B, C, E by week seven.
    • The Lactobacillus acidophilus group appeared by week one and maintained high levels.
    • No significant changes in Lactobacillus species or biovar composition were detected in the dams.

    Conclusions:

    • Piglet intestinal Lactobacillus populations exhibit dynamic, age-dependent shifts in species and biovar composition.
    • Lactobacillus reuteri demonstrates significant temporal succession in early piglet development.
    • Maternal Lactobacillus populations appear stable and do not reflect the dynamic changes observed in their offspring.