Last year, as a first step in defining a «normal»
lab mouse microbiome, they analyzed feces from mice from two major vendors.
Not exact matches
«They have the genetics of
lab mice, but they also have a
microbiome from the outside world that promotes fitness.»
The gut bacteria from the wild
mice were fairly similar, but the
microbiomes of the
lab mice were significantly different, with fewer Bacteroidetes and Proteobacteria, for example.
For a few thousand dollars per procedure, they can transfer
mouse embryos from other
labs into females from each colony, so that the
mouse pups pick up the new
microbiomes and can be compared to the original strains.