| AHF | acid-hydrolyzed fat |
| CFU | colony-forming units |
| CP | crude protein |
| DM | dry matter |
| GI | gastrointestinal |
| NFE | nitrogen-free extract |
| OM | organic matter |
| PD | phylogenetic diversity |
| qPCR | quantitative polymerase chain reaction |
| SCFA | short-chain fatty acids |
| TDF | total dietary fiber |
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