Table 2.
Categorical variables and their levels collected from 112 sows
|
Variable |
Level |
Sows / level |
|
|---|---|---|---|
| (n) | (%) | ||
| Parity |
1. parity |
32 |
28.6 |
| 2. parity |
18 |
16.1 |
|
| 3. parity |
11 |
9.8 |
|
| 4. parity |
17 |
15.2 |
|
| 5. parity |
7 |
6.3 |
|
| 6. parity |
6 |
5.4 |
|
| 7. parity |
9 |
8.0 |
|
| 8. parity |
8 |
7.1 |
|
| 9. parity |
4 |
3.6 |
|
| Time of farrowing* |
day |
66 |
58.9 |
| night |
46 |
41.1 |
|
| Abnormal behaviour (aggression, etc.) |
no |
105 |
93.8 |
| yes |
7 |
6.2 |
|
| Diseases |
no |
95 |
84.8 |
| local diseases** |
5 |
4.5 |
|
| systemic disease incl. PPDS |
12 |
10.7 |
|
| Time of occurrence of disease |
day of partum |
1 |
5.9 |
| 1 day post-partum |
8 |
47.1 |
|
| 2 days post-partum |
2 |
11.8 |
|
| 3 days post-partum |
4 |
23.5 |
|
| later |
2 |
11.8 |
|
| Facultative treatment with antibiotics effective against M. hyopneumoniae*** |
no |
94 |
83.9 |
| yes |
18 |
16.1 |
|
| Level of antibodies against M. hyopneumoniae ante-partum |
S/P ratio < 0,4 |
25 |
22.3 |
| S/P ratio ≥ 0,4 |
87 |
77.7 |
|
| Level of antibodies against M. hyopneumoniae post-partum |
S/P ratio < 0,4 |
52 |
46.8 |
| S/P ratio ≥ 0,4 | 59 | 53.2 | |
*‘day’ linked to working hours, whereas ‘night’ was out of working hours.
**local disease = arthritis, circumscribed dermatitis, shoulder lesion, etc.
***treatments with amoxicillin, ampicillin, colistin and penicillin were considered being NOT effective against M. hyopneumoniae, whereas apramycin, enrofloxacin, tetracyclin and tulathromycin were taken into account as being effective against M. hyopneumoniae.