Table 3.
Effects of thiamine supplementation on metabolites in the rumen and contents of thiamine, lipopolysaccharide, cytokine, and IgA in the blood of goats fed with a high-concentrate diet.
Dietary treatment | |||||
---|---|---|---|---|---|
Item | CON | HC | HCT | SEM | P-value |
RUMINAL | |||||
pH | 6.15a | 5.36b | 6.05a | 0.13 | 0.001 |
Thiamine (μg/L) | 8.03a | 2.59c | 5.40b | 0.21 | 0.004 |
LPS (× 103 EU/ml) | 26.46a | 48.37b | 31.65a | 2.95 | 0.008 |
Acetate (mM) | 42.08a | 33.82b | 46.32a | 3.13 | 0.003 |
Propionate (mM) | 14.62c | 34.98a | 19.28b | 2.26 | 0.006 |
Butyrate (mM) | 10.89c | 17.64a | 13.21b | 0.54 | 0.003 |
TVFA (mmol/L) | 67.64c | 86.82a | 78.88b | 3.16 | 0.008 |
BLOOD | |||||
Thiamine (μg/L) | 15.67a | 10.18c | 12.64b | 0.33 | 0.005 |
LPS (EU/ml) | 0.28b | 0.69a | 0.35b | 0.11 | 0.004 |
LBP (μg/ml) | 26.49b | 58.34a | 34.54b | 0.24 | 0.007 |
IgA (ng/ml) | 61.34a | 47.36b | 58.69a | 3.34 | 0.009 |
TNF-α (ng/L) | 38.26 | 46.38 | 36.59 | 6.52 | 0.473 |
IL-1β (ng/L) | 139.54b | 216.39a | 151.62b | 13.79 | 0.008 |
IL6 (ng/L) | 39.27b | 65.82a | 43.53b | 5.56 | 0.017 |
IL10 (ng/L) | 46.49 | 52.56 | 45.74 | 7.64 | 0.265 |
Within a row, means without a common superscript letter differ (P < 0.05).
TVFA, total volatile fatty acid; LBP, lipopolysaccharide binding protein; IgA, immune globulin; EU, endotoxin unit; IU, international unit; CON, control; HC, high-concentrate diet; HCT, high-concentrate diet supplemented with 200 mg of thiamine/kg of dry matter intake (n = 8 goats/treatment).