Evaluation of silages of hybrids of napier grass and sorghum in the low country wet zone of Sri Lanka
, , , , , oraz | 22 cze 2020
O artykule
Article Category: Research Article
Data publikacji: 22 cze 2020
Zakres stron: 11 - 18
Otrzymano: 21 sie 2019
Przyjęty: 13 sty 2020
DOI: https://doi.org/10.2478/boku-2020-0002
Słowa kluczowe
© 2020 Thakshala Rupanjanie Seresinhe et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.
Fresh matter yields of silagesTabelle 1. Frischmasseerträge der Silagen
| Harvest | Harvesting interval (weeks) | Fresh matter yield (t/ha/cut) | p-Value | |||
|---|---|---|---|---|---|---|
| HN var. CO-3 | HN var. CO-4 | Sorghum | ||||
| 1 | 4 | 12.70 ± 0.26d | 10.44 ± 0.23d | 5.74 ± 0.22e | V | 0.000 |
| 6 | 29.04 ± 0.52b | 22.70 ± 0.39c | 28.41 ± 1.10b | H | 0.000 | |
| 8 | 40.93 ± 0.49a | 37.56 ± 0.84a | 38.33 ± 2.17a | V × H | 0.000 | |
| 2 | 4 | 9.81 ± 0.92d | 9.63 ± 1.95d | 5.94 ± 0.34e | V | 0.000 |
| 6 | 30.85 ± 0.87b | 23.15 ± 0.18c | 30.17 ± 1.12b | H | 0.000 | |
| 8 | 42.93 ± 0.35a | 38.48 ± 0.91a | 39.37 ± 1.53a | V × H | 0.000 | |
Effect of silage type and cutting frequency on nutrient concentrationTabelle 4. Einfluss von Silagetyp und Schnitthäufigkeit auf die Nährstoffkonzentration
| Parameters | CI (weeks) | Silage type | p-Value | |||||
|---|---|---|---|---|---|---|---|---|
| HN var. CO-3 | HN var. CO-4 | Sorghum | HN var. CO-3 (50%) + Sorghum (50%) | HN var. CO-4 (50%) + Sorghum (50%) | ||||
| Ash (%) | 4 | 12.44 ± 0.05b | 9.26 ± 0.06d | 12.78 ± 0.05a | 12.61 ± 0.04ab | 11.02 ± 0.49c | S | 0.000 |
| 6 | 8.32 ± 0.04fg | 7.64 ± 0.05h | 8.68 ± 0.05e | 8.50 ± 0.03ef | 8.16 ± 0.05g | Ci | 0.000 | |
| 8 | 7.61 ± 0.07h | 7.13 ± 0.06i | 6.81 ± 0.04j | 7.21 ± 0.05i | 6.97 ± 0.04ij | S × Ci | 0.000 | |
| Crude Protein (%) | 4 | 20.96 ± 0.12a | 20.73 ± 0.2ab | 20.52 ± 0.05b | 20.74 ± 0.05ab | 20.62 ± 0.08b | S | 0.000 |
| 6 | 14.41 ± 0.08e | 14.66 ± 0.47e | 18.88 ± 0.10c | 16.65 ± 0.02d | 16.77 ± 0.04d | Ci | 0.000 | |
| 8 | 13.63 ± 0.05g | 13.66 ± 0.27g | 14.50 ± 0.07e | 14.06 ± 0.06f | 14.08 ± 0.06f | S × Ci | 0.000 | |
| Crude Fiber (%) | 4 | 27.16 ± 0.17 a | 27.38 ± 0.15 de | 21.88 ± 0.13g | 24.52 ± 0.29f | 24.63 ± 0.34f | S | 0.000 |
| 6 | 29.02 ± 0.39 c | 29.04 ± 0.16 c | 26.57 ± 0.13 e | 27.79 ± 0.58d | 27.80 ± 0.37d | Ci | 0.000 | |
| 8 | 30.02 ± 0.18b | 31.48 ± 0.10 a | 28.71 ± 0.15c | 29.37 ± 0.45bc | 30.10 ± 0.36b | S × Ci | 0.000 | |
Effect of silage type and cutting frequency on quality characteristicsTabelle 3. Einfluss von Silageart und Schnitthäufigkeit auf die Qualitätsmerkmale
| Parameters | CI (weeks) | Silage type | p-Value | |||||
|---|---|---|---|---|---|---|---|---|
| HN var. CO-3 | HN var. CO-4 | Sorghum | HN var. CO-3 (50%) + Sorghum (50%) | HN var. CO-4 (50%) + Sorghum (50%) | ||||
| DM (%) | 4 | 14.14 ± 0.12b | 13.28 ± 0.65b | 14.88 ± 0.37b | 15.44 ± 0.78b | 14.63 ± 0.77b | S | 0.236 |
| 6 | 15.58 ± 0.25b | 16.73 ± 1.05ab | 17.88 ± 1.66ab | 14.24 ± 1.57b | 16.31 ± 2.81ab | Ci | 0.046 | |
| 8 | 14.95 ± 0.28b | 15.83 ± 1.16ab | 18.77 ± 0.42a | 16.49 ± 1.75ab | 15.63 ± 0.30b | S × Ci | 0.650 | |
| pH | 4 | 5.28 ± 0.16ab | 5.45 ± 0.25a | 4.82 ± 0.26b | 5.04 ± 0.07ab | 5.00 ± 0.22ab | S | 0.007 |
| 6 | 5.52 ± 0.26a | 5.47 ± 0.17a | 4.92 ± 0.07bc | 5.41 ± 0.19a | 5.22 ± 0.21a | Ci | 0.209 | |
| 8 | 5.16 ± 0.08a | 5.35 ± 0.14a | 4.54 ± 0.05c | 5.28 ± 0.23a | 5.15 ± 0.26ab | S × Ci | 0.944 | |
| NH3-N (%) | 4 | 0.16 ± 0.01a | 0.16 ± 0.05a | 0.05 ± 0.01bc | 0.05 ± 0.01b | 0.05 ± 0.00b | S | 0.048 |
| 6 | 0.10 ± 0.0a | 0.11 ± 0.04ab | 0.04 ± 0.01b | 0.14 ± 0.01a | 0.12 ± 0.05ab | Ci | 0.029 | |
| 8 | 0.05 ± 0.00b | 0.06 ± 0.03ab | 0.02 ± 0.01c | 0.05 ± 0.04bc | 0.06 ± 0.05bc | S × Ci | 0.246 | |
| Lactic acid (%) | 4 | 0.68 ± 0.48b | 1.26 ± 0.77b | 2.08 ± 0.77b | 1.62 ± 0.56b | 2.53 ± 0.97ab | S | 0.031 |
| 6 | 1.03 ± 0.45b | 1.25 ± 0.14b | 4.14 ± 0.77a | 2.65 ± 1.4ab | 2.71 ± 0.06ab | Ci | 0.260 | |
| 8 | 0.44 ± 0.04b | 1.15 ± 0.76b | 2.35 ± 1.05b | 0.64 ± 0.59b | 0.66 ± 0.59b | S × Ci | 0.599 | |
| SCHO (%) | 4 | 0.88 ± 0.15d | 1.07 ± 0.18bcd | 2.12 ± 0.88abc | 1.86 ± 0.13b | 1.84 ± 0.28b | S | 0.016 |
| 6 | 1.52 ± 0.19b | 1.36 ± 0.15acdb | 2.54 ± 0.12a | 2.63 ± 0.57a | 1.59 ± 0.41b | Ci | 0.000 | |
| 8 | 0.88 ± 0.11c | 0.46 ± 0.15d | 0.49 ± 0.45cd | 0.28 ± 0.80d | 0.83 ± 0.11c | S × Ci | 0.043 | |
| NH3-N/TN | 4 | 0.05 ± 0.00a | 0.05 ± 0.01ab | 0.01 ± 0.00c | 0.01 ± 0.00c | 0.01 ± 0.00c | S | 0.069 |
| 6 | 0.04 ± 0.01a | 0.05 ± 0.02ab | 0.01 ± 0.00c | 0.05 ± 0.00a | 0.04 ± 0.02b | Ci | 0.082 | |
| 8 | 0.02 ± 0.00b | 0.03 ± 0.01ab | 0.01 ± 0.00c | 0.02 ± 0.01abc | 0.03 ± 0.02abc | S × Ci | 0.751 | |
Effect of silage types on physical characteristics of silageTabelle 2. Einfluss der Silagetypen auf die physikalischen Eigenschaften der Silage
| Parameters | Silage type | ||||
|---|---|---|---|---|---|
| HN var. CO-3 | HN var. CO-4 | Sorghum | HN var. CO-3 (50%) + Sorghum (50%) | HN var. CO-4 (50%) + Sorghum (50%) | |
| Physical appearance & texture | Wet and leafy | Wet and leafy | Leafy, soft texture | Soft, medium wet | Soft, medium wet |
| Color | Olive green | Olive green | Light green to green | Pale green to light green | Pale green to light green |
| Aroma | Little fruity smell | Little fruity smell | Mild, high fruity smell | Medium fruity smell | Medium fruity smell |
| Molds | Absent | Absent | Absent | Absent | Absent |