FIGURE 7.

The median abundance (%) of significantly altered phyla according to linear discriminant effects size analysis in healthy horses and those with antimicrobial‐associated diarrhea (AAD) and Salmonella. Healthy horses are separated by diets A‐D and diet E. A, The abundance of Actinobacteria is significantly greater in healthy horses on diets A‐D than those on diet E and for those with Salmonella colitis. B, Horse with AAD have significantly more Bacteroidetes than healthy horses on diets A‐D or diet E and those Salmonella. C, Horses with Salmonella colitis have significantly less Firmicutes than healthy horses on diets A‐D. D, Horses with AAD have significantly more Proteobacteria than healthy horses on diets A‐D. E, Horses with AAD have a marked reduction in the amount of Verrucomicrobia compared to healthy horses on diets A‐D and diet E and Salmonella colitis