Table 5.
Effect of gas kinetics and accumulated gas output of the concentrate on roughage (C: R) ratio with kefir supplementation
| Item | align="left" colspan="1" rowspan="1" valign="top">Concentrate feed mixture% | Alfalfa hay | ||||
|---|---|---|---|---|---|---|
| 100 | 80 | 60 | 40 | 20 | ||
| Gas Pro 24h (mL) | 67.82a | 65.325ab | 63.591b | 59.71c | 55.84d | 52.97e |
| GPDM (mL/200 mg) | 75.92a | 73.95b | 73.80b | 72.32b | 68.93c | 65.54d |
| GPOM (mL/200 mg) | 1979.15a | 1926.88b | 1877.42c | 1839.80c | 1768.65d | 1697.87e |
| GPNDF (mL/200 mg) | 11.11a | 10.93a | 10.54b | 10.34bc | 9.94c | 9.54c |
| GPADF (mL/200 mg) | 10.60 | 8.82 | 10.30 | 10.21 | 9.94 | 9.66 |
| IVOMD% | 66.60a | 68.10a | 52.29b | 38.396c | 29.51d | 23.60d |
| ivTDDM224.832 | 242.21 | 238.84 | 249.28 | 276.46 | 302.80 | |
| PF (mL/mg) | 0.747 | 0.73 | 0.73 | 0.72 | 0.69 | 0.66 |
| ME (MJ/Kg DM) | 1.10 | 1.11 | 1.15 | 1.21 | 1.23 | 1.25 |
| Microbial mass (g/kg DM) | 11.51 | 11.18 | 10.95 | 10.43 | 9.91 | 9.52 |
| SCFA (µM) | 598.44a | 594.35a | 591.84a | 588.56a | 566.45b | 543.05c |