Table 2.
Metabolites with significantly different levels in the serum of thermal neutral (TN) or heat stress (HS) finishing pigs.
| NO. | Metabolites | RT | Quant Mass | VIP | p | Fold Change |
|---|---|---|---|---|---|---|
| Gut Microbiome-Derived Metabolites | ||||||
| 1 | fluorene | 9.41 | 204 | 2.60 | 0.009 | 1.51 |
| 2 | lyxose 1 | 9.46 | 103 | 1.87 | 0.039 | 1.62 |
| 3 | d-galacturonic acid | 10.97 | 333 | 2.14 | <0.001 | 1.76 |
| Fatty Acid Metabolism | ||||||
| 4 | 3-Hexenedioic acid | 8.65 | 170 | 1.91 | 0.049 | 2.10 |
| 5 | myristic Acid | 10.57 | 285 | 1.81 | 0.026 | 1.55 |
| 6 | palmitic acid | 11.56 | 117 | 1.96 | 0.043 | 1.55 |
| 7 | arachidonic acid | 13.02 | 80 | 1.16 | 0.034 | 0.76 |
| 8 | 3-Aminoisobutyric acid 1 | 8.29 | 174 | 1.36 | 0.020 | 1.23 |
| 9 | 3-hydroxybutanoic acid | 5.91 | 131 | 2.10 | 0.037 | 1.87 |
| 10 | maleic acid | 7.18 | 341 | 1.70 | 0.017 | 1.84 |
| 11 | tartaric acid | 9.31 | 355 | 1.91 | 0.027 | 1.46 |
| Carbohydrate Metabolism | ||||||
| 12 | glucose 2 | 10.90 | 103 | 1.58 | <0.001 | 0.52 |
| 13 | mannose 2 | 10.82 | 160 | 2.23 | <0.001 | 0.65 |
| 14 | lactose 1 | 14.21 | 73 | 1.58 | 0.027 | 0.30 |
| 15 | 3,6-Anhydro-D-galactose | 10.00 | 231 | 1.45 | 0.015 | 0.58 |
| 16 | 6-phosphogluconic acid | 13.16 | 318 | 2.17 | 0.006 | 0.73 |
| 17 | ribonic acid, gamma-lactone | 9.70 | 68 | 2.31 | 0.024 | 1.53 |
| 18 | Glucoheptonic acid | 12.61 | 232 | 2.14 | 0.023 | 1.72 |
| Amino Acid Metabolism | ||||||
| 19 | lysine | 10.95 | 174 | 1.39 | 0.015 | 1.71 |
| 20 | N-Methyl-DL-alanine | 6.25 | 130 | 1.88 | 0.050 | 2.19 |
| Amines Metabolism | ||||||
| 21 | hydroxylamine | 5.88 | 245 | 1.62 | 0.031 | 1.56 |
| 22 | N-Acetyl-5-hydroxytryptamine 2 | 13.57 | 55 | 1.95 | 0.049 | 0.15 |
| 23 | 3-methylcatechol | 7.90 | 180 | 2.34 | 0.012 | 0.53 |
| 24 | indole-3-acetamide | 12.58 | 105 | 1.76 | 0.016 | 0.52 |
RT, retention time; VIP, variable importance in the projection; Fold Change, ratio of mean peak area of the HS group to the mean peak area of the TN group.