Table 3.
Milk production, milk composition, milk quality, dry matter intake (DMI), body weight (BW), body weight change (BWc), and body condition score (BCS), and body condition score change (BCSc) when lactating dairy cows were fed a medium forage (MF) or high forage (HF) ration
| Measurement | TMR | |||
|---|---|---|---|---|
| MF | HF | SEM | P < | |
| Milk, kg/d | 28.1 | 24.1 | 0.56 | 0.01 |
| 4% FCM1, kg/d | 27.6 | 24.1 | 0.50 | 0.01 |
| Fat, % | 3.98 | 4.00 | 0.11 | 0.85 |
| Protein, % | 3.11 | 3.17 | 0.04 | 0.29 |
| Lactose, % | 4.81 | 4.77 | 0.03 | 0.41 |
| SNF,% | 8.87 | 8.77 | 0.05 | 0.20 |
| MUN2, mg/dL | 12.1 | 13.1 | 0.25 | 0.01 |
| SCC3, x1000 CFU/ml | 189.0 | 176.9 | 159.0 | 0.96 |
| DMI, kg/d | 21.9 | 18.8 | .59 | 0.04 |
| FE4, Milk/DMI | 1.29 | 1.30 | 0.06 | 0.69 |
| FE4, FCM/DMI | 1.25 | 1.30 | 0.44 | 0.70 |
| BW, kg | 685.9 | 673.2 | 4.91 | 0.09 |
| BW change, kg | 4.8 | −14.7 | 6.47 | 0.05 |
| DMI/BWT, % | 3.15 | 2.82 | 0.08 | 0.01 |
| BCS5, 1–5 scale | 3.37 | 3.05 | 0.04 | 0.01 |
| BCS change, kg/d | −0.15 | −0.23 | 0.12 | 0.62 |
1
FCM = 0.4 * Milk, kg/d) + (15* (Milk Fat/100) * Milk, kg/d, (NRC, 2001).
2
Milk Urea Nitrogen.
2
Somatic Cell Count.
4
Feed Efficiency.
5
Body Condition Score.