Table 7. Effects of supplementation with rumen-protected choline (TC), rumen-protected methionine (TM) or both (TCM) on the blood levels of pro-inflammatory cytokines (means of whole period) in transition dairy cows (N = 7)1.
Items | T0 | TC | TM | TCM | SEM | P-value | ||
---|---|---|---|---|---|---|---|---|
C | M | C×M | ||||||
IL-2, pg/mL | 115.47 | 118.48 | 119.35 | 123.08 | 1.256 | 0.013 | 0.002 | 0.777 |
IL-4, ng/mL | 1.07 | 1.08 | 1.06 | 1.11 | 0.021 | 0.133 | 0.604 | 0.394 |
IL-6, pg/mL | 165.53 | 150.41 | 153.40 | 136.72 | 4.336 | 0.001 | 0.007 | 0.859 |
TNF-α, ng/mL | 0.96 | 0.91 | 0.93 | 0.85 | 0.022 | 0.007 | 0.079 | 0.449 |
1IL = interleukin, and TNF-α = tumor necrosis factor-α. Blood samples were collected at -21, -14, -7, 0, 7, 14, and 21 d.