Table 3.
In vitro fermentation characteristics and volatile fatty acids production of the forage species (n = 39).
| Forage Species | pH | dOM | OMCV | Yield | A | B | tVFAs | BCFA |
|---|---|---|---|---|---|---|---|---|
| % | mL/g | mL/g | mL/g | h | mM/g iOM | |||
| Poaceae | ||||||||
| Andropogon virginicus | 6.83 | 51.03 cd | 166.35 bc | 325.98 abcd | 200.74 bcde | 38.25 cde | 72.52 | 0.025 bcd |
| Brachiaria deflexa | 6.70 | 55.27 bc | 175.38 ab | 317.74 bcd | 223.88 abc | 44.14 bc | 77.65 | 0.025 bcd |
| Cenchorus biflorus | 6.82 | 51.90 cd | 172.96 ab | 333.41 abc | 198.39 cde | 34.49 defg | 78.36 | 0.026 bcd |
| Dactyloctenium aegyptium | 6.86 | 55.09 bc | 174.57 ab | 317.07 bcd | 198.66 bcde | 34.83 def | 76.19 | 0.027 bcd |
| Eragrostis tremula | 6.80 | 42.30 e | 148.65 d | 351.61 ab | 210.58 bcd | 55.69 a | 62.70 | 0.034 b |
| Leptochloa caerulescens | 6.81 | 54.28 bc | 175.73 ab | 323.77 abcd | 245.31 a | 52.16 ab | 74.80 | 0.023 cd |
| Loudetia aroundinacea | 6.60 | 51.38 cd | 150.11 cd | 292.21 def | 180.51 e | 37.33 cde | 59.13 | 0.035 b |
| Paspalum notatum | 6.85 | 52.35 cd | 172.68 ab | 329.69 abc | 190.93 de | 27.46 fgh | 79.17 | 0.027 bcd |
| Paspalum vaginatum | 6.68 | 66.87 a | 184.69 a | 276.05 ef | 210.78 bcd | 31.50 efg | 87.37 | 0.020 d |
| Pennisetum purpureum | 6.76 | 48.92 d | 173.60 ab | 355.05 a | 227.67 ab | 49.94 ab | 70.12 | 0.026 bcd |
| Fabaceae | ||||||||
| Chamaecrista rotundifolia | 6.82 | 52.94 cd | 171.66 ab | 324.27 abcd | 211.97 bcd | 26.12 gh | 77.52 | 0.032 bc |
| Zornia latifolia | 6.90 | 58.45 b | 180.38 ab | 309.18 cde | 194.90 cde | 19.48 h | 76.38 | 0.029 bcd |
| Arecaceae | ||||||||
| Elaeis guineensis | 6.71 | 58.16 b | 152.52 cd | 262.49 f | 199.12 bcde | 40.90 cd | 69.29 | 0.049 a |
| MSE | 0.10 | 1.49 | 5.70 | 12.10 | 8.03 | 2.35 | 20.91 | 0.003 |
MSE: mean square error. Along the column, for each fodder, lower-case letters indicate statistically significant differences (p < 0.01). dOM = organic matter degradability (% of incubated OM); OMCV = cumulative volume of gas related to incubated OM; Yield = cumulative volume of gas related to degraded OM; A = potential gas production; B = time at which A/2 was formed; BCFA: branched-chain fatty acid proportion on tVFAs; tVFAs: total volatile fatty acids. n = 39 corresponded to 13 forages × 03 replicates.