Table 2.
Ingredient and chemical composition of experimental diet.
| Item | AAHa | SAHa |
|---|---|---|
| Ingredients (% DM) | ||
| Corn silage | 31.11 | 31.09 |
| Brewer’s grain | 4.00 | 4.00 |
| Oat hay | 5.00 | 5.00 |
| Corn grain, ground | 7.30 | 7.29 |
| Alfalfa hay | 12.83 | 12.88 |
| Soybean hull | 4.45 | 4.45 |
| Soybean meal | 4.24 | 4.24 |
| Cottonseed cake | 4.34 | 4.33 |
| Sodium bicarbonate | 0.71 | 0.71 |
| Concentrate supplementb | 26.02 | 26.01 |
| Chemical composition (% DM) | ||
| Crude protein | 14.91 | 14.93 |
| Neutral detergent fiber | 47.10 | 47.00 |
| Acid detergent fiber | 19.31 | 20.34 |
| Calcium | 0.82 | 0.89 |
| Phosphorus | 0.38 | 0.38 |
| NELc (MJ/kg) | 6.66 | 6.65 |
a
AAH, American alfalfa hay; SAH, Spanish alfalfa hay.
b
Contained per kg premix dry matter: 31.3 mg Co, 343.5 mg Cu, 2, 258 mg Fe, 1, 160 mg Mn, 1, 534 mg Zn, 40.3 mg I, 17.7 mg Se, 317.4 KIU vitamin A, 80.8 KIU vitamin D, and 3, 030 IU vitamin E.
c
NEL, net energy for lactating cow.