Table 8.
Milk production (LSM) of cows fed diets containing (HBFG) or not (CG) hydroponic barley forage.
| Parameter | Group | SEM | Effect (p) | |||
|---|---|---|---|---|---|---|
| CG | HBFG | Diet | Time | Diet × Time | ||
| Milk yield kg/d | 30.78 | 30.80 | 1.104 | 0.9915 | <0.0001 | 0.0508 |
| Energy corrected milk kg/d | 30.90 | 30.73 | 0.896 | 0.895 | 0.0001 | 0.3508 |
| Fat kg/d | 1.24 | 1.23 | 0.036 | 0.818 | 0.0210 | 0.6341 |
| Protein kg/d | 1.12 | 1.15 | 0.028 | 0.5043 | <0.0001 | 0.0237 |
| Fat % | 4.10 | 4.07 | 0.113 | 0.8123 | 0.0234 | 0.7302 |
| Protein % | 3.70 | 3.80 | 0.075 | 0.3476 | <0.0001 | 0.6045 |
| Lactose % | 4.80 | 4.88 | 0.030 | 0.0512 | 0.0029 | 0.0388 |
| SCC1, 103 cells/ mL | 164.06 | 225.18 | 47.878 | 0.3705 | 0.1095 | 0.1726 |
| Total solid (%) | 13.22 | 13.41 | 0.176 | 0.4578 | <0.0001 | 0.6204 |
| Non fat solid % | 9.15 | 9.35 | 0.079 | 0.0722 | <0.0001 | 0.4917 |
| Casein % | 2.93 | 3.02 | 0.067 | 0.3267 | <0.0001 | 0.7717 |
| Urea mg/dL | 30.20 | 29.77 | 0.615 | 0.6286 | <0.0001 | <0.0001 |
| pH | 6.63 | 6.65 | 0.008 | 0.2372 | <0.0001 | <0.0001 |
| Cryoscopy index | −530.77 | −534.16 | 0.758 | 0.0025 | <0.0001 | 0.116 |
| Clotting properties | ||||||
| r, min | 23.23 | 26.80 | 1.287 | 0.0542 | <0.0001 | 0.0014 |
| K20, min | 7.83 | 7.13 | 0.253 | 0.0549 | <0.0001 | 0.0370 |
| A30, mm | 29.96 | 27.79 | 0.647 | 0.0210 | <0.0001 | 0.0014 |
Significant p-values are printed in bold. 1 Somatic cell count.