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The mean amount of CH4 (mg/m3±SD) and CO2 (mg/m3±SD) in calves’ rumen during the experiment.
| Day of the experiment | Gas | Group | |
|---|---|---|---|
| CoG | Pre12 | ||
| 1st day of the experiment | CH4 | 600.0±429.23 | 904.8±224.31 |
| CO2 | 3165.1±372.35 | 4141.2±622.55 | |
| 28th day of the experiment | CH4 | 1011.3±151.21 | 849.6±66.55 |
| CO2 | 4530.4±369.65 | 3919.3±440.45 | |
| 56th day of the experiment | CH4 | 863.3±164.17 | 893.7±213.12 |
| CO2 | 4260.8±250.69 | 4852.1±695.21 | |
CH4=Methane, CO2=Carbon dioxide, CoG=Control group
