Table 2.
Composition of diet (DM basis) fed to cattle (finishing experiment)
Ingredient, % of diet DM | Biochar inclusion, % DM | ||
---|---|---|---|
0 | 0.8 | 3 | |
Dry-rolled corn | 53 | 53 | 53 |
Corn silage | 15 | 15 | 15 |
Wet distillers grains plus solubles | 25 | 25 | 25 |
Supplement1 | |||
Fine ground corn | 4.630 | 3.830 | 1.630 |
Biochar | - | 0.800 | 3.000 |
Limestone | 1.320 | 1.320 | 1.320 |
Tallow | 0.175 | 0.175 | 0.175 |
Urea | 0.500 | 0.500 | 0.500 |
Salt | 0.300 | 0.300 | 0.300 |
Beef trace mineral2 | 0.050 | 0.050 | 0.050 |
Vitamin A-D-E3 | 0.015 | 0.015 | 0.015 |
Rumensin-904 | 0.010 | 0.010 | 0.010 |
Nutrient analysis, %5 | |||
DM | 66.9 | 67.3 | 67.5 |
OM | 85.4 | 85.4 | 85.2 |
CP | 13.3 | 13.2 | 13.1 |
NDF | 25.2 | 25.9 | 27.9 |
ADF | 10.7 | 11.2 | 12.6 |
CP = crude protein.
1Supplement fed at 7% of diet DM.
2Premix contained 10% Mg, 6% Zn, 2.5% Mn, 0.5% Cu, 0.3% I, and 0.05% Co.
3Premix contained 1,500 IU of vitamin A, 3,000 IU of vitamin D, and 3.7 IU of vitamin E. per gram.
4Formulated to supply Rumensin-90 (Elanco Animal Health) at 20 mg/kg of DM.
5Nutrient analysis was measured on weekly grab samples of individual feeds, composited into period samples.