Table 7.
Rumen pH (mean ± SD), percentage of animals that presented at least one subacute rumen acidosis (SARA) risk alarm, number and time (min) of SARA risk alarms detected during the experimental period by ruminal pH sensors in lactating cows fed diets containing (HBFG) or not (CG) hydroponic barley forage.
| Parameter | Group | ||
|---|---|---|---|
| CG | HBFG | p ^ | |
| Daily mean pH value | 6.25 ± 0.28 | 6.24 ± 0.31 | 0.76 |
| SARA risk alarm-animals, % | 50.0 | 53.3 | 0.85 * |
| SARA risk alarms, n | 3.13 ± 6.12 | 5.73 ± 8.67 | 0.38 |
| Duration of SARA risk alarms, min | 1509.67 ± 3061.42 | 2728.33 ± 4380.27 | 0.40 |
^ Wilcoxon rank-sum (Mann–Whitney) test. * Test of proportions.