TABLE 2.
Fermentation characteristics of silage after 14, 30, 60 and 90 d1.
| Time | DM | LA | AA | LAB | Yeasts | Molds | ||
| Site2 | (d) | pH | (g/kg DM) | (g/kg DM) | (g/kg DM) | (log cfu/g FM) | (log cfu/g FM) | (log cfu/g FM) |
| TZ | 14 | 5.36 | 304.6 | 14.2 | 0.0 | 8.24 | 4.46 | 3.08 |
| 30 | 4.34 | 292.8 | 12.4 | 4.3 | 8.51 | 4.00 | 3.10 | |
| 60 | 4.57 | 324.3 | 15.1 | 10.7 | 8.36 | 4.75 | 3.24 | |
| 90 | 4.29 | 282.8 | 50.0 | 13.1 | 8.32 | 4.96 | 3.10 | |
| GL | 14 | 4.39 | 283.0 | 16.4 | 13.9 | 8.48 | 2.80 | 3.00 |
| 30 | 4.28 | 273.6 | 21.0 | 9.6 | 8.39 | 2.48 | 0.00 | |
| 60 | 4.2 | 273.1 | 14.0 | 13.6 | 7.82 | 3.59 | 0.00 | |
| 90 | 4.11 | 276.1 | 55.3 | 10.2 | 7.58 | 3.14 | 0.00 | |
| DX | 14 | 5.95 | 316.4 | 11.4 | 21.1 | 8.26 | 3.62 | 3.00 |
| 30 | 4.88 | 333.4 | 17.1 | 5.2 | 8.81 | 4.51 | 3.07 | |
| 60 | 4.47 | 341.6 | 12.8 | 11.2 | 7.79 | 4.64 | 3.24 | |
| 90 | 4.28 | 336.9 | 40.2 | 15.3 | 7.43 | 4.65 | 3.00 | |
| NQ | 14 | 4.41 | 331.8 | 15.6 | 13.7 | 5.74 | 3.06 | 0.00 |
| 30 | 4.35 | 319.9 | 11.3 | 14.0 | 8.33 | 3.78 | 3.30 | |
| 60 | 4.18 | 316.8 | 9.8 | 10.9 | 7.85 | 4.61 | 3.30 | |
| 90 | 4.19 | 313.1 | 100.0 | 19.3 | 7.74 | 5.82 | 3.30 | |
| SEM3 | 0.03 | 0.814 | 0.634 | 0.654 | 0.208 | 0.114 | 0.066 | |
| P-value4 | T | *** | NS | *** | ** | NS | ** | NS |
| S | *** | * | * | ** | * | ** | *** | |
| T × S | *** | NS | *** | *** | NS | NS | *** |
1DM, dry matter; FM, fresh matter; LA, lactic acid; AA, acetic acid; LAB, lactic acid bacteria. 2TZ, samples from grassland of Tianzhu County; GL, samples from grassland of Golog Prefecture; DX, samples from grassland of Damxung County; NQ, samples from grassland of Nagqu Prefecture. 3SEM, error of the means. 4S, site; T, ensiling time; S × T, interaction of S and T; NS, P > 0.05; *,0.01 < P < 0.05; **, 0.001 < P < 0.01; ***, P < 0.001.