| CAL | Chenopodium Album L. |
| CP | Crude protein |
| NDF | Neutral detergent fiber |
| ADF | Acid detergent fiber |
| IVDMD | In vitro dry matter digestibility |
| A/P | Acetate to propionate |
| TVFA | Total volatile fatty acids |
| GHG | Greenhouse gas |
| CO2 | Carbon dioxide |
| CH4 | Methane |
| GE | Gross energy |
| OM | Organic matter |
| DM | Dry matter |
| O2 | Oxygen |
| TGP | Total gas production |
| NH3-N | Ammonia–nitrogen |
| EE | Ether extract |
| CF | Crude fiber |
| CA | Crude ash |
| USA | United States of America |
| SAS | Statistical analysis system |
| GLM | General linear model |
| SEM | Standard error of the mean |
| CNU | Chungnam National University |
| IPET | Korea Institute of Planning and Evaluation for Technology in Food, Agriculture, and Forestry |
| MAFRA | Ministry of Agriculture, Food and Rural Affairs, Korea |
| KOICA | Korea International Cooperation Agency |
| HKNU | Hankyong National University |
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