Table 1.
Diet composition of the experimental diets
| Item |
Diet |
||
|---|---|---|---|
| LCF | HCS | LCS | |
| Ingredient (% of dry matter) | |||
| Chinese wildrye |
3.7 |
- |
- |
| Corn silage |
26.7 |
- |
- |
| Alfalfa hay |
23.4 |
- |
- |
| Corn straw |
- |
35.0 |
53.8 |
| Corn |
24.6 |
35.26 |
24.6 |
| Soybean meal |
14.8 |
20.82 |
14.8 |
| Whole cottonseed |
5.1 |
7.18 |
5.1 |
| Dicalcium phosphate |
0.6 |
0.84 |
0.6 |
| Salt |
0.5 |
0.5 |
0.5 |
| Premix1 |
0.6 |
0.6 |
0.6 |
| Total |
100 |
100 |
100 |
| Concentrate to roughage ratio |
46:54 |
65: 35 |
46:54 |
| Nutrient composition (% of dry matter) | |||
| Net energy (Mcal/kg) |
1.50 |
1.54 |
1.40 |
| Crude protein |
16.8 |
16.9 |
13.9 |
| Neutral detergent fiber |
37.6 |
34.4 |
46.0 |
| Acid detergent fiber |
23.9 |
19.9 |
26.7 |
| Non-fiber carbohydrate2 |
37.0 |
41.3 |
32.6 |
| Ether extract |
3.4 |
3.2 |
2.5 |
| Calcium |
0.50 |
0.45 |
0.42 |
| Phosphorus | 0.38 | 0.41 | 0.35 |
1Contained Cu (as sulfate), 2,142 mg/kg; Mn (as sulfate), 15,428 mg/kg; Zn (as sulfate), 15,428 mg/kg; Co (as chloride), 28 mg/kg; I (as iodate), 231 mg/kg; Se (as selenite), 57 mg/kg; vitamin A, 2,285,000 IU/kg; vitamin D, 457,000 IU/kg; and vitamin E, 11,400 mg/kg.
2Non-fiber carbohydrate = 100 – (% Neutral detergent fiber +% Crude protein +% Ether extract +% Ash).