Table 1. Diet components and analysis of the total mixed ration (TMR) ingested during stays in respiration chamber.
| Component (g/kg DM) | Far-off | Close-up | Lactation | ||
|---|---|---|---|---|---|
| Grass silage | 793 | 160 | 181 | ||
| Corn silage | 432 | 325 | |||
| Grass hay | 66 | 102 | 32 | ||
| Barley straw | 133 | 63 | 38 | ||
| Corn kernels | 45 | 70 | |||
| Grain mix | 39 | ||||
| Extracted soy meal | 54 | 21 | |||
| Extracted canola seed meal | 68 | 38 | |||
| Feed lime | 4 | ||||
| MF 2000 (concentrate)1 | 65 | 220 | |||
| Mineral 95222 | 9 | ||||
| Prenatal TR403 | 11 | 11 | |||
| Chemical analysis | 4 weeks a.p. | 5 weeks p.p. | 13 weeks p.p. | 42 weeks p.p. | |
| Crude ash | (g/kg DM) | 86 | 69 | 68 | 73 |
| Crude protein | (g/kg DM) | 177 | 162 | 157 | 156 |
| Crude fiber | (g/kg DM) | 231 | 167 | 171 | 166 |
| Crude fat | (g/kg DM) | 21 | 31 | 30 | 32 |
| Sugar | (g/kg DM) | 10 | 26 | 29 | 21 |
| Starch | (g/kg DM) | 100 | 255 | 252 | 254 |
| NDF | (g/kg DM) | 501 | 345 | 347 | 371 |
| ADF | (g/kg DM) | 296 | 208 | 211 | 210 |
| N free extracts | (g/kg DM) | 407 | 494 | 494 | 494 |
| ME | (MJ/kg DM) | 9.6 | 11.3 | 11.2 | 11.3 |
| NEL | (MJ/kg DM) | 5.7 | 7.0 | 6.9 | 7.1 |
1MF 2000 (Vollkraft Mischfutterwerke GmbH, Güstrow, Germany): 7.1 MJ NEL/kg, 24% crude protein, 3.3% crude fat, 6.2% crude fiber, 8.4% crude ash, 0.7% calcium, 0.5% phosphorus, 0.65% sodium, vitamins A, D3, E, calcium iodate, cobalt carbonate, manganese oxide, zinc oxide, sodium selenite.
2Rinderstolz 9522 (Salvana GmbH, Sparrieshoop, Germany): 92% crude ash, 20% calcium, 5% phosphorus, 8% sodium, 6% magnesium, vitamins A, D3, E, copper sulfate, zinc oxide, manganese oxide, calcium iodate, sodium selenite, cobalt carbonate.
3Prenatal TR 40 (Salvana GmbH, Sparrieshoop, Germany): 75% crude ash, 4% calcium, 6% phosphorus, 15% magnesium, 8% sodium, vitamins A, D3, E, zinc oxide, manganese oxide, copper sulfate, calcium iodate, sodium selenite, cobalt carbonate.