Table 5. The concentration of samples classified with types of disinfection station.
| Variables | Automatic system | Semi-automatic system | Manual system | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| A | B | C | D | A | B | C | D | A | B | C | D | |
| Laying hens | 1 | - | - | - | - | - | - | - | 3 | 1 | 1 | - |
| Broiler | 1 | - | 2 | 3 | 1 | 1 | - | 1 | 4 | 2 | 4 | 1 |
| Duck | 1 | - | - | - | - | - | - | - | - | - | - | 1 |
| Chicken abattoir | - | - | - | - | 1 | - | - | - | - | - | - | - |
| Korean cow (Han-woo) | - | - | - | 1 | - | - | - | - | 5 | 1 | - | 3 |
| Dairy cow | 1 | - | - | 1 | - | - | 1 | 2 | 4 | - | 1 | 2 |
| Pig | - | 2 | - | 1 | - | - | - | 2 | 4 | 2 | 5 | 5 |
| X* | - | - | - | - | - | - | - | - | 1 | - | - | - |
| Abattoir | 1 | 1 | - | - | - | - | - | 1 | - | - | 1 | - |
| Feed manufacture factory | 1 | 2 | - | 1 | - | 1 | - | - | - | - | - | - |
| Total (%) | 6 (30) | 5 (25) | 2 (10) | 7 (35) | 2 (18.18) | 2 (18.18) | 1 (9.09) | 6 (54.55) | 12 (23.53) | 12 (23.53) | 6 (11.76) | 21 (41.18) |
| Ineffective (%) | 11 (55.00) | 4 (36.36) | 24 (47.06) | |||||||||
| Inappropriate (%) | 18 (90.00) | 10 (90.91) | 45 (88.24) | |||||||||
Concentration of each sample follows QIA of Korea guidelines. Automatic system replenishes water and disinfectant automatically. Semi-automatic system only automatically replenishes water. Manual system replenishes water and disinfectants by hand power. Ineffective, A+B; Inappropriate, A+B+D.
A, no effective disinfectant was detected; B, low concentration (< 1X); C, proper concentration (1X ≤ and < 2X); D, over concentration (2X ≤); X*, the farms raise more than two kinds of livestock.