| VFAs | Volatile fatty acids |
| ASVs | Amplicon sequence variants |
| PCoA | Principal coordinate analysis |
| LEfSe | Linear discriminant analysis (LDA) coupled with effect size measurements |
| OPLS-DA | Orthogonal partial least squares discrimination analysis |
| VIP | Variable important in projection |
| KEGG | Kyoto encyclopedia of genes and genomes |
| DEGs | Differentially expressed genes |