Table 2.
Prevalence of L. intracellularis in different regions and growth stages of pigs detected by qPCR.
| Regions | Sample quantity | Positive quantity | Positive rates (95% CI) |
|---|---|---|---|
| Luochuan | 83 | 12 | 14.5 (8.0–24.3)a, b |
| Tongchuan | 223 | 17 | 7.6 (4.6–12.1)b |
| Weinan | 113 | 23 | 20.4 (13.6–29.2)a |
| Zhouzhi | 149 | 30 | 20.1 (14.2–27.7)a |
| Chenggu | 104 | 21 | 20.2 (13.2–29.4)a |
| Sub-total | 672 | 103 | 15.3 (12.7–18.3) |
| Growth stages | |||
| NP | 110 | 9 | 8.2 (4.0–15.4)a, b |
| GP | 141 | 47 | 33.3 (25.8–41.8)c |
| FP | 93 | 18 | 19.4 (12.2–29.1)b, c |
| GS | 159 | 10 | 6.3 (3.2–11.6)a |
| LS | 74 | 3 | 4.1 (1.1–12.2)a, b |
| GT | 83 | 15 | 18.1 (10.8–28.4)a, b, c |
| BR | 12 | 1 | 8.3 (0.4–40.2)a, b, c |
| Sub-total | 672 | 103 | 15.3 (12.7–18.3) |
Nursery pigs (NP) = 10–25 kg, Growing pigs (GP) = 25–40 kg, Finishing pigs = 40 to till slaughter, Gestation sows (GS), Lactating sows (LS), Gilt (GT) = 50–100 kg, Boars (BR). Superscript letters (a, b, c) indicate statistical differences among groups; groups sharing the same letter show no significant difference (p > 0.05).