| BCS | Body condition score |
| BHBA | Beta-hydroxybutyrate |
| CAZymes | Carbohydrate-active enzymes |
| CD | Crypt depth |
| FDR | False discovery rate |
| GHs | Glycoside hydrolases |
| GTs | Glycosyltransferases |
| H&E | Hematoxylin and eosin |
| HS | Heat stress |
| KEGG | Kyoto Encyclopedia of Genes and Genomes |
| LCA | Lowest common ancestor |
| NEFA | Nonesterified fatty acids |
| OPLS-DA | Orthogonal partial least squares discriminant analysis |
| PLS-DA | Partial least squares discriminant analysis |
| ROS | Reactive oxygen species |
| SAAs | Sulfur amino acids |
| THI | Temperature–humidity index |
| TMR | Total mixed ration |
| VH | Villus height |
| VH:CD | Villus height to crypt depth |
| VIP | Variable importance in projection |
| YC | Yeast culture |