Table 1 Nutrient and energy content of the concentrate feed.
Components and nutrients | Control | OH | OL | IH | IL | |
|---|---|---|---|---|---|---|
Supplemental minerals (mg-element kg−1) | Selenium | – | 0.6 | 0.2 | 0.6 | 0.2 |
Copper | – | 17 | 13 | 17 | 13 | |
Zinc | – | 104 | 84 | 104 | 84 | |
Manganese | – | 60 | 48 | 60 | 48 | |
Metabolisable energy (MJ kg−1) | 10.9 | 10.9 | 10.9 | 10.9 | 10.9 | |
Crude ash (%) | 7.59 | 7.60 | 7.63 | 7.58 | 7.58 | |
Crude fibre (%) | 7.77 | 7.76 | 7.76 | 7.76 | 7.76 | |
Crude protein (%) | 17.0 | 17.0 | 17.0 | 17.0 | 17.0 | |
Dry matter (%) | 88.0 | 88.0 | 88.0 | 88.0 | 88.0 | |
Crude oils and fats (%) | 3.65 | 3.65 | 3.65 | 3.65 | 3.65 | |
Starch and sugar (%) | 30.3 | 30.2 | 30.2 | 30.3 | 30.3 | |
Starch (%) | 22.9 | 22.9 | 22.9 | 22.9 | 22.9 | |
Sugar (%) | 7.35 | 7.35 | 7.35 | 7.35 | 7.35 | |
Neutral detergent fibre (%) | 20.8 | 20.7 | 20.7 | 20.7 | 20.7 | |
Sodium (%) | 0.45 | 0.45 | 0.47 | 0.47 | 0.47 | |
Calcium (%) | 1.11 | 1.12 | 1.11 | 1.12 | 1.12 | |
Magnesium (%) | 0.23 | 0.23 | 0.23 | 0.23 | 0.23 | |
Salt (%) | 1.30 | 1.30 | 1.35 | 1.35 | 1.35 | |
Digestible undegradable protein (g kg−1) | 42.4 | 42.4 | 42.4 | 42.4 | 42.6 | |
Effective rumen degradable protein (g kg−1) | 107 | 107 | 107 | 107 | 107 | |
Vitamin A (IU kg−1) | – | 8000 | 8000 | 8000 | 8000 | |
Vitamin B12 (mcg kg−1) | – | 60.0 | 60.0 | 60.0 | 60.0 | |
Vitamin D3 (IU kg−1) | – | 2000 | 2000 | 2000 | 2000 | |
Vitamin E (IU kg−1) | – | 10.0 | 10.0 | 10.0 | 10.0 | |
