There is an experiment in cows in which they swapped the cow's rumen contents, which is a big gut with way more microorganisms than the regular gut, and their microbiomes reverted back to their original profiles, which is different to these findings in mice here.
I remember hearing about that rumen swap experiment. One of my professors at the time said that more substantial changes could be affected by doing repeat rumen content swaps.
There is an experiment in cows in which they swapped the cow's rumen contents, which is a big gut with way more microorganisms than the regular gut, and their microbiomes reverted back to their original profiles, which is different to these findings in mice here.
I remember hearing about that rumen swap experiment. One of my professors at the time said that more substantial changes could be affected by doing repeat rumen content swaps.