2. Compositional Analysis of Ryegrass (RG) Used in all Three Experiments and Plantain (PL) Incubated in Experiment 1.
| substrates | OMD (% DM) | NDF (% DM) | ADF (% DM) | lignin (% DM) | lignin/NDF % | ash (% DM) | SSS (% DM) | CP (% DM) | crude fat (% DM) | NSC (% DM) | NSC/CP | plantain% | acteoside (mg/g pasture DM) | aucubin (mg/g pasture DM) | catalpol (mg/g pasture DM) | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ryegrass | (RG) | 83.2 | 42.8 | 21.3 | 6.3 | 14.7 | 12.6 | 5.8 | 27.2 | 3.8 | 13.6 | 0.5 | n.d | n.d | n.d | n.d |
| plantain (PL) substrates | PL1 | 70.0 | 41.5 | 25.5 | 8.7 | 21.0 | 11.9 | 6.2 | 16.8 | 2.5 | 27.2 | 1.6 | 45.3 | 9.9 | 9 | 0.9 |
| PL2 | 68.5 | 42.7 | 27.5 | 8.3 | 19.4 | 11.5 | 7.5 | 16.6 | 2.5 | 26.8 | 1.6 | 48.0 | 18.3 | 5.8 | 0.5 | |
| PL3 | 67.3 | 43.8 | 26.3 | 8.4 | 19.2 | 11.8 | 6.3 | 17.7 | 2.2 | 24.6 | 1.4 | 56.5 | 6.6 | 9.9 | 0.6 | |
a
Plantain percentage in the substrate.
b
RG value was over two interquartile ranges compared to the averages of PL1, PL2, and PL3 within columns, n.d: not detected.
c
Plantain substrate (PL1) containing 10 mg of acteoside/g pasture DM and 9 mg aucubin/g pasture DM.
d
Plantain substrate (PL2) containing 18 mg acteoside/g pasture DM and 6 mg aucubin/g pasture DM.
e
Plantain substrate (PL3) containing 6 mg acteoside/g pasture DM and 9 mg aucubin/g pasture DM, DM: dry matter, OMD: organic matter digestibility in vivo, NDF: neutral detergent fiber, ADF: acid detergent fiber, SSS: soluble sugars and starch.