TABLE 3.
Analysis of serum biochemical indices in Holstein heifers between three groups.
| Item |
Groups |
||
| CN | LC | HC | |
| HSP70 (pg/mL) | 294.91 ± 5.20A | 198.93 ± 7.24C | 238.34 ± 3.64B |
| Cor (mg/mL) | 116.30 ± 3.30A | 76.52 ± 2.37C | 104.64 ± 2.58B |
| LDH (U/L) | 430.56 ± 8.51A | 292.65 ± 8.09C | 342.02 ± 8.28B |
| IgA (μg/mL) | 215.11 ± 6.03C | 317.14 ± 8.46A | 280.15 ± 3.28B |
| IgG (μg/mL) | 367.82 ± 7.32C | 522.55 ± 6.04A | 451.99 ± 12.89B |
| ALT (U/L) | 4.54 ± 0.31A | 2.92 ± 0.39B | 3.06 ± 0.43B |
| CK (U/mL) | 0.443 ± 0.062A | 0.23 ± 0.021B | 0.38 ± 0.041A |
| T-AOC (mmol/L) | 0.167 ± 0.014 | 0.17 ± 0.018 | 0.17 ± 0.007 |
| MDA (nmol/mL) | 4.12 ± 0.47 | 3.76 ± 0.27 | 3.90 ± 0.19 |
| SOD (U/mL) | 78.30 ± 3.38b | 94.80 ± 5.74a | 82.43 ± 3.75ab |
| GSH-PX (U/mL) | 100.23 ± 6.85b | 121.61 ± 4.85a | 120.05 ± 5.90a |
HSP70, Heat shock protein 70; COR, Cortisol; LDH, Lactate dehydrogenase; IgA, Immunoglobulin G; IgG, Immunoglobulin G; ALT, Alanine aminotransferase; CK, Creatine kinase; T-AOC, Total antioxidant capacity; MDA, Malondialdehyde; SOD, Superoxide Dismutase; GSH-PX, Glutathione peroxidase; CN, control no HTR; LC, 5% fermented HTRs replaced corn silage; HC, 10% fermented HTRs replaced corn silage. a and b denote values that differ significantly at P < 0.05, while A and B denote values that differ significantly at P < 0.01. The values were calculated as the means ± standard error of the mean (N = 8); a and b denote values that differ significantly at P < 0.05, while A and B denote values that differ significantly at P < 0.01.