| ADF | acid detergent fiber |
| ADFD | digestible acid detergent fiber |
| aNDFom | neutral detergent fiber assayed with heat-stable amylase and expressed exclusive of residual ash |
| ANOVA | analysis of variance |
| CP | crude protein |
| CPD | digestible crude protein |
| CV | coefficient of variation |
| CVAS | Cumberland Valley Analytical Services Inc. |
| DM | dry matter |
| DMI | dry matter intake |
| EE | ether extract |
| ESC | ethanol-soluble carbohydrates |
| GLM | generalized linear models |
| iNDF240 | 240 h in vitro indigestible neutral detergent fiber |
| LMM | linear mixed model |
| NDFD | digestible neutral detergent fiber |
| NEL | net energy for lactation |
| NIRS | near infrared reflectance spectroscopy |
| OM | organic matter |
| OMD | digestible organic matter |
| RIC | roughage Intake Control |
| RSE | relative standard error |
| SD | standard deviation |
| SP | soluble protein |
| TDN | total digestibly nutrient |
| TMR | totally mixed ration |