Table 2.
Feed treatment nutritive and energy composition on dry matter basis
| Treatment | SEM | P value | |||
|---|---|---|---|---|---|
| RS | MIX | CS | |||
| Nutritive value (%) | |||||
| DM | 89.3a | 74.9b | 56.3c | 4.97 | 0.006** |
| CP | 11.2c | 14.3a | 12.6b | 0.45 | 0.002** |
| OM | 83.1c | 85.4b | 88.5a | 0.80 | < 0.001** |
| NDF | 80.8a | 80.9a | 81.4a | 0.28 | 0.666ns |
| ADF | 58.9a | 40.2b | 42.5b | 3.06 | 0.005** |
| Lignin | 1.8b | 3.5a | 2.5b | 0.29 | 0.016* |
| Hemicellulose | 21.9b | 40.7a | 39.0a | 3.07 | 0.001** |
| Cellulose | 40.2a | 22.1b | 28.5b | 2.74 | 0.005** |
| Ash | 17.0a | 14.6b | 11.5c | 0.80 | < 0.001** |
| Energy value (MJ/kg) | |||||
| DE | 7.78b | 10.4a | 10.6a | 0.46 | 0.002** |
| ME | 6.38b | 8.48a | 8.72a | 0.38 | 0.002** |
| NEM | 2.87b | 4.93a | 5.15a | 0.37 | 0.002** |
| NEG | 0.65b | 2.58a | 2.78a | 0.35 | 0.002** |
Means with different superscript letters in each parameter are significantly different
RS 100% rice straw, MIX 50% rice straw + 50% corn silage, CS 100% corn silage, SEM standard error of mean, DM dry matter, CP crude protein, OM organic matter, NDF neutral detergent fibre, ADF acid detergent fibre, DE digestible energy, ME metabolizable energy, NEM net energy for maintenance, NEG net energy for gain
nsNot significant at P > 0.05, *significance level at P < 0.05, **significance level at P ≤ 0.01