Table 3. Effects of supplementation with rumen-protected choline (TC), rumen-protected methionine (TM) or both (TCM) on the plasma lipid concentrations (means of whole period) in transition dairy cows1.
Items | T0 | TC | TM | TCM | SEM | P-value | ||
---|---|---|---|---|---|---|---|---|
C | M | C×M | ||||||
TC, mmol/L | 3.36 | 3.22 | 3.23 | 3.12 | 0.024 | <0.001 | <0.001 | 0.546 |
HDL-C, mmol/L | 1.88 | 1.91 | 1.90 | 1.93 | 0.016 | 0.082 | 0.264 | 0.861 |
LDL-C, mmol/L | 0.91 | 0.84 | 0.85 | 0.81 | 0.012 | <0.001 | <0.001 | 0.105 |
TG, mmol/L | 0.14 | 0.13 | 0.14 | 0.13 | 0.007 | 0.296 | 0.550 | 0.834 |
VLDL, mmol/L | 0.53 | 0.57 | 0.56 | 0.59 | 0.010 | <0.001 | 0.008 | 0.764 |
ApoB 100, μg/mL | 501.63 | 517.02 | 513.86 | 527.20 | 3.085 | <0.001 | 0.001 | 0.742 |
1TC = total cholesterol, HDL-C = high-density lipoprotein cholesterol, LDL-C = low-density lipoprotein cholesterol, TG = triglyceride, VLDL = very-low-density lipoprotein, and ApoB 100 = apolipoprotein B100. Blood samples were collected at -21, -14, -7, 0, 7, 14, and 21 d.