Table 4.
Chemical compositions and in vitro digestibility of the total mixed ration silages after 30 days of ensiling.
| Item 1 | Treatment 2 | SEM | p-Value | ||
|---|---|---|---|---|---|
| Control | LP | PS | |||
| Chemical compositions | |||||
| Dry matter (g kg−1 FM) | 487.57 | 480.56 | 481.02 | 3.54 | 0.732 |
| Crude protein (g kg−1 DM) | 150.40 | 154.20 | 153.60 | 1.06 | 0.331 |
| Water soluble carbohydrate (g kg−1 DM) | 9.03 B | 7.03 B | 29.01 A | 3.59 | <0.001 |
| Neutral detergent fiber (g/kg (g kg−1 DM) | 366.29 | 347.68 | 342.78 | 8.40 | 0.548 |
| Acid detergent fiber (g kg−1 DM) | 231.43 | 222.87 | 218.45 | 6.91 | 0.789 |
| In vitro degradability | |||||
| DMD (g kg−1) | 579.90 | 606.71 | 608.87 | 6.37 | 0.113 |
| NDFD (g kg−1) | 355.29 | 354.55 | 330.79 | 21.84 | 0.902 |
| In vitro gas production parameters | |||||
| V24h (mL) | 57.15 | 57.01 | 56.57 | 0.72 | 0.957 |
| V48h (mL) | 65.68 | 65.10 | 65.04 | 0.80 | 0.951 |
| V(∞) (mL) | 64.10 | 63.74 | 63.43 | 0.79 | 0.955 |
| k (mL·h−1) | 3.60 | 3.69 | 3.58 | 0.08 | 0.861 |
Means within the same row (A,B) with different superscripts differ significantly from each other (p < 0.05). SEM, standard error of the mean. 1 FM, fresh matter; DM, dry matter; DMD, dry matter digestibility; NDFD, neutral detergent fiber digestibility; V24h, 24-h cumulative gas production; V48h, 48-h cumulative gas production; V(∞), maximal cumulative gas production; k, maximum gas production rate. 2 LP, Lactobacillus plantarum inoculant; PS, potassium sorbate.