Fig. 1.

Timeline for Megasphaera elsdenii inoculation and fecal sample collection (experiment B). Numbers represent days relative to farrowing (birth) date: above timeline, when offspring pigs were inoculated intragastrically with a mix of five M. elsdenii strains, and below timeline, when fecal samples were taken for enumeration and selective isolation of M. elsdenii. Pigs were weaned at 20 days after farrowing. Three fecal samples were taken from the sow at times indicated and analyzed for M. elsdenii.