Table 1. Estimated chemical composition (% dry matter basis or as stated) of experimental diets used in in vitro incubation of four protein byproduct raw materials
| Items | Treatments |
| RGP | CGF | WG | CGM |
| Chemical composition |
| DM | 95.95 | 90.61 | 87.97 | 90.98 |
| CP (%DM) | 15.03 | 20.87 | 14.97 | 19.03 |
| NDF (%DM) | 38.62 | 45.50 | 44.40 | 47.30 |
| ADF (%DM) | 31.64 | 9.41 | 11.77 | 12.53 |
| EE (%DM) | 1.22 | 3.62 | 3.60 | 6.93 |
| Ash (%DM) | 3.11 | 5.32 | 4.65 | 1.70 |
| NFC (%DM) | 42.02 | 24.69 | 32.38 | 25.04 |
RGP, red ginseng byproduct; CGF, corn gluten feed; WG, wheat gluten; CGM, corn germ meal; DM, dry matter; CP, crude protein; NDF, neutral detergent fiber analyzed with heat- stable α-amylase; ADF, acid detergent fiber; EE, ether extract; NFC, non-fibrous carbohydrate.