Items^{d} | VEG | FL | SP | SEM^{c} | *P-*value |
---|

DM |

*a + b* | 78.3^{a} | 77.6^{a} | 66.3^{b} | 0.80 | < 0.001 |

*a* | 19.8^{a} | 18.3^{a} | 14.4^{b} | 0.74 | 0.002 |

*b* | 58.5^{a} | 59.3^{a} | 51.9^{b} | 0.67 | < 0.001 |

*c* | 3.50^{a} | 2.65^{b} | 2.46^{b} | 0.081 | < 0.001 |

*Lag* | 0 | 0 | 0 | – | – |

*ED*_{0.05} | 43.9^{a} | 38.8^{b} | 31.5^{c} | 0.45 | < 0.001 |

aNDF |

*a + b* | 77.7^{a} | 80.8^{a} | 60.0^{b} | 2.20 | 0.001 |

*a* | 15.3^{a} | 13.2^{a} | 7.5^{b} | 0.75 | < 0.001 |

*b* | 62.3^{a} | 67.6^{a} | 52.6^{b} | 2.43 | 0.021 |

*c* | 2.64 | 1.93 | 2.71 | 0.274 | 0.156 |

*Lag* | 1.9^{ab} | 0.0^{b} | 5.9^{a} | 1.20 | 0.034 |

*ED*_{0.02} | 47.0^{a} | 46.4^{a} | 30.3^{b} | 1.59 | 0.002 |

CP |

*a + b* | 76.9^{a} | 68.2^{ab} | 59.7^{b} | 3.70 | 0.058 |

*a* | 18.0 | 16.4 | 18.4 | 2.24 | 0.788 |

*b* | 58.9^{a} | 51.8^{ab} | 41.3^{b} | 3.34 | 0.027 |

*c* | 6.69 | 4.58 | 3.60 | 0.889 | 0.135 |

*Lag* | 0 | 0 | 2.0 | 1.14 | 0.444 |

*ED*_{0.05} | 51.3^{a} | 41.0^{b} | 32.0^{b} | 3.29 | 0.011 |

^{a,b}Means with different lowercased letters differ (*P* < 0.05)^{c}*SEM* standard error of the mean^{d}*a*: soluble fraction (%); *b*: potentially degradable fraction (%); *a* + *b*: the maximum potential degradability; *c*: the rate at which *b* is degraded (%/h); ED_{xxx}: effective degradability (%) at a ruminal passage rate of 0.05/h for DM, and 0.02/h for NDF, and 0.05/h for CP