| AA | Amino acid |
| ALT | Alanine aminotransferase |
| AST | Aspartate aminotransferase |
| bCAA | Branched-chain amino acids |
| BUN | Urea nitrogen |
| CPK | Creatine phosphokinase |
| GC-MS | Gas chromatography–mass spectrometry |
| Group H | High reproductive performance group |
| Group L | Low reproductive performance group |
| IPM | Intestinal putrefactive metabolite |
| LC-MS/MS | Ultra-performance liquid chromatography tandem mass spectrometry |
| SCFA | Short-chain fatty acid |
| Tcho | Total cholesterol |
| TMA | Trimethylamine |
| d9-TMA | Trimethylamine-d9 hydrochloride |
| TMAO | Trimethylamine N-oxide |
| d9-TMAO | Timethylamine-d9 N-oxide |
| TNF | Tumor necrosis factor |
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