TABLE 4.
Descriptive statistics of the raw data on the dust concentrations (mg/m3) in response to test feed measured every 5 s for four consecutive nights
| Item | Test feeda | Number of data entires | Mean ± SD | Min | Max | Median |
|---|---|---|---|---|---|---|
| Inhalable particles (<100 μm) | Hay | 28,088 | 0.1945 ± 0.1276 | 0.0021 | 4.8743 | 0.2232 |
| Cube | 28,075 | 0.4600 ± 0.3669 | 0.0062 | 11.9856 | 0.4004 | |
| Thoracic particles (<10 μm) | Hay | 28,081 | 0.0515 ± 0.0762 | 0.0009 | 2.9441 | 0.0337 |
| Cube | 28,075 | 0.0490 ± 0.0548 | 0.0003 | 1.7585 | 0.0360 |
a
Horses received either 5 kg (as fed basis) of hay or cube made from alfalfa–meadow grass mix.