Table 9.

Core microbiome of colostrum (genus level), according to the frequency that a certain genus has been considered part of the colostrum core microbiome in the literature.

Genus	Phyla	Frequency
Acinetobacter	Proteobacteria	+++++
Pseudomonas	Proteobacteria	++++
Staphylococcus	Firmicutes	++++
Bacteroides	Bacteroidetes	+++
Corynebacterium	Actinobacteria	+++
Streptococcus	Firmicutes	+++
Bacillus	Firmicutes	++
Chryseobacterium	Bacteroidetes	++
Flavobacterium	Bacteroidetes	++
Lactococcus	Firmicutes	++

In terms of inclusion criteria, the genera have to be designated as part of the colostrum core or top genera in at least two studies. The symbol “+” indicates the number of studies. Values were obtained from refs [14,410,411,413,414].