Table 2.
Chemical composition, volatile fatty acid production, and Fleigh point of different substitution treatments of lucerne with lemon pomace by-product after 60 days of ensiling.
| L0 | L25 | L50 | L75 | L100 | MSE | P-value | |
|---|---|---|---|---|---|---|---|
| pH | 5.85A | 5.18B | 4.30C | 3.61D | 3.39D | 0.19 | 0.0068 |
| DM (g/kg) | 163.5A | 178.0A | 222.9B | 239.6B | 251.6B | 10.8 | 0.0016 |
| CP (g/kg of DM) | 174.23A | 144.58A | 118.26B | 89.62Ca | 61.10Cb | 9.66 | 0.0025 |
| Ash | 8.95 | 8.82 | 7.52 | 9.05 | 9.94 | 1.04 | 0.6291 |
| EE (g/kg of DM) | 72.35 | 71.25 | 70.65 | 71.65 | 68.35 | 6.58 | 0.4770 |
| NDF (g/kg of DM) | 302.1a | 285.4 | 273.5 | 261.5 | 255.8b | 12.8 | 0.0418 |
| ADF (g/kg of DM) | 251.25 | 260.58 | 272.85 | 281.54 | 274.65 | 42.54 | 0.4029 |
| WSC (g/kg of DM) | 4.56 | 3.59 | 3.95 | 5.32 | 4.68 | 0.12 | 0.5442 |
| Lactic acid (g/kg of DM) | 52.20a | 53.21a | 55.55 | 58.21b | 61.84b | 9.04 | 0.0229 |
| Acetic acid (g/kg of DM) | 32.32a | 30.25 | 28.56 | 24.12b | 23.58b | 4.56 | 0.0391 |
| NH3-N (g/kg of TN) | 105.56A | 82.24B | 51.56C | 30.54D | 25.36D | 11.21 | 0.0084 |
| Fleigh point | 37.7a | 33.4a | 77.58b | 88.52c | 99.72d | 2.32 | 0.0107 |
DM, dry matter; CP, crude protein; EE, ether extract; NDF, neutral detergent fiber; ADF, acid detergent fiber; WSC, water-soluble carbohydrates; NH3-N, ammonia N; TN, total N; MSE, mean standard error.
L0, 0 lemon pomace; L25, 25% lemon pomace, L50, 50% lemon pomace; L75, 75% lemon pomace; L100, 100% lemon pomace.
Different letters in the same line correspond to statistical differences. A, B, C = P < 0.01; a, b, c = P < 0.05.