Table 1.
Chemical composition of forage and supplements
| Item | Rice straw2 | L-DIP1,3 | H-DIP1,4 |
|---|---|---|---|
| % DM | |||
| OM | 84.9 | 94.5 | 93.6 |
| CP | 4.7 | 26.7 | 26.9 |
| TDN | NM | 88.0 | 88.0 |
| DIP | NM | 28.0 | 72.0 |
| NDF | 72.8 | 41.8 | 35.0 |
| ADF | 52.3 | 19.0 | 12.4 |
| Acid detergent insoluble ash | 8.8 | 0.3 | 0.4 |
1Treatments: cattle were fed 0, 50 or 150 mg N/kg BW (CON, 50 L-DIP, 150 L-DIP, 50 H-DIP, or 150 H-DIP).
2Ad libitum access.
3L-DIP = low degradable intake protein supplement (100% dried distillers’ grains).
4H-DIP = high degradable intake protein supplement (69.5% wheat middling, 30% soybean meal, and 0.5% urea).