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Regression equations between dietary peNDF>1.18 levels (x) and (y) (n =30, R2> 0.55).
| Items | Regression model | R2 | p -value |
|---|---|---|---|
| DM (%) | y = −0.441x2 + 26.679x – 334.996 | 0.654 | 0.002 |
| OM (%) | y = −0.557x2 + 33.619x – 430.9 | 0.558 | 0.007 |
| NDF (%) | y = −0.954x2 + 57.927x – 810.075 | 0.733 | <0.001 |
| ADF (%) | y = −0.727x2 + 44.588x – 615.365 | 0.602 | 0.004 |
