Summary of the composition of the ADDAGMA dtabase for domestic cattle, horse, pig, and chicken. (A) Number of guts microbials taxa detected in the four species. (B) Number of microbial taxa shared between pairs of the four species, and among all species. (C–F) Number of gut microbial taxa detected in studies related to animal phenotypes or microbial diversity in cattle, horse, pig, and chicken, respectively. (G–J) Proportions of gut microbial taxa identified to different taxonomic levels in cattle, horse, pig, and chicken, respectively.