Table 2.
Nutrient composition (% of DM) of medium forage (MF) and high forage (HF) grain mixes, corn silage (CS), and alfalfa haylage (AH) and the total mixed rations (TMR)
| Nutrient | Grain mix | Forages | TMR Calculated | TMR, Analyzed | ||||
|---|---|---|---|---|---|---|---|---|
| MF | HF | CS | AH | MF1 | HF2 | MF | HF | |
| DM, % | 89.8 | 89.3 | 36.9 | 44.7 | 60.9 | 51.1 | 53.2 | 49.2 |
| CP | 13.7 | 13.5 | 8.0 | 26.1 | 16.8 | 17.8 | 17.3 | 17.3 |
| SP, % of CP | 20.4 | 27.2 | 58.0 | 65.4 | 45.6 | 55.4 | 55.4 | 58.0 |
| ADF | 24.2 | 15.7 | 20.5 | 25.5 | 23.8 | 21.9 | 24.2 | 22.0 |
| NDF | 36.9 | 21.6 | 35.9 | 35.9 | 35.2 | 31.6 | 33.6 | 30.5 |
| Lignin | – | – | 1.7 | 5.8 | – | – | 4.0 | 4.0 |
| Fat | 5.1 | 4.6 | 2.7 | 2.6 | 3.61 | 3.02 | 3.0 | 3.4 |
| NFC | 40.9 | 54.1 | 49.9 | 32.8 | 40.1 | 42.5 | 39.7 | 42.2 |
| Starch | 20.3 | 34.7 | 35.9 | – | 16.7 | 18.4 | – | – |
| IVDMD | – | – | 72.9 | 75.7 | – | – | – | – |
| NDFd, % of NDF | – | – | 52.9 | 64.9 | – | – | – | – |
| Lactic acid | – | – | 7.0 | 5.2 | – | – | – | – |
| Acetic acid | – | – | 2.2 | 0.6 | – | – | – | – |
1
Calculated as 40% grain mix, 36% alfalfa haylage, and 24% corn silage on a DM basis.
2
Calculated as 20% grain mix, 48% alfalfa haylage, and 32% corn silage on a DM basis.