Research, Policy and Practice
 | China | Mongolia | |||||||
---|---|---|---|---|---|---|---|---|---|
 |  | Spring | Summer | Autumn | Winter | Spring | Summer | Autumn | Winter |
Duration of stay (days) | Mean | 25 | 43 | 18 | 154 | 43 | 32 | 77 | 135 |
SD | 1.1 | 7.0 | 3.8 | 16.3 | 3.1 | 0.0 | 23.2 | 70.0 | |
n | 179 | 237 | 270 | 745 | 227 | 173 | 84 | 680 | |
Herbage offer (kg DM ha−1) | Mean | 1,418 | 1,685 | 1,121 | 847 | 1,201 | 535 | 1,868 | 555 |
SD | 896.5 | 747.2 | 864.6 | 656.2 | 820.7 | 419.3 | 835.1 | 338.0 | |
n | 44 | 219 | 31 | 65 | 60 | 326 | 28 | 96 | |
DM (g kg−1 FM) | Mean | 449 | 359 | 447 | 428 | 513 | 571 | 384 | 386 |
SD | 131.3 | 129.5 | 93.5 | 89.8 | 127.2 | 159.4 | 59.6 | 116.9 | |
n a | 44 | 194 | 30 | 56 | 57 | 290 | 22 | 91 | |
OM (g kg−1 DM) | Mean | 853 | 891 | 822 | 869 | 917 | 891 | 891 | 811 |
SD | 35.9 | 26.9 | 59.8 | 34.1 | 22.3 | 33.3 | 22.5 | 67.9 | |
CP (g kg−1 DM) | Mean | 136 | 121 | 71 | 85 | 118 | 108 | 83 | 111 |
SD | 26.6 | 17.2 | 27.5 | 23.5 | 19.6 | 30.8 | 14.9 | 18.1 | |
NDF (g kg−1 DM) | Mean | 528 | 467 | 586 | 525 | 470 | 552 | 586 | 410 |
SD | 64.9 | 44.6 | 98.5 | 64.3 | 87.4 | 53.3 | 53.1 | 88.1 | |
ADF (g kg−1 DM) | Mean | 360 | 325 | 397 | 367 | 286 | 298 | 339 | 239 |
SD | 54.6 | 38.3 | 92.3 | 43.2 | 44.2 | 46.8 | 33.9 | 69.5 | |
P (g kg−1 DM) | Mean | 2.1 | 2.0 | 1.2 | 1.3 | 1.7 | 1.3 | 1.2 | 1.3 |
SD | 0.3 | 0.2 | 0.4 | 0.5 | 0.4 | 0.3 | 0.2 | 0.4 | |
Ca (g kg−1 DM) | Mean | 8.0 | 10.5 | 15.3 | 17.8 | 8.1 | 7.1 | 7.9 | 31.1 |
SD | 5.3 | 2.9 | 10.8 | 8.7 | 3.9 | 3.6 | 3.3 | 14.8 |