Table 2 Factors related to anti-avian HEV and ALV-J antibodies positivity among chickens (n = 1995)
Characters | Total | Positive for avian HEV (%) | p- Value | Positive for ALV-J (%) | p- Value |
|---|---|---|---|---|---|
District | |||||
Shandong | 1122 | 473 (42.16) | 0.00 | 29 (2.58) | 0.13 |
Shannxi | 873 | 227 (26) | 14 (1.60) | ||
Type of Birds | |||||
Broiler | 1119 | 384 (34.32) | 0.42 | 28 (2.34) | 0.23 |
Layers | 876 | 316 (36.07) | 15 (1.71) | ||
Age group (weeks) | |||||
10–19 | 108 | 35 (32.41) | 0.00 | 2 (1.85) | 0.00 |
20–29 | 621 | 278 (44.77) | 5 (0.81) | ||
30–39 | 73 | 34 (46.58) | 10 (13.70) | ||
40–49 | 312 | 62 (19.87) | 0 (0) | ||
50–59 | 761 | 253 (33.25) | 25 (3.29) | ||
60–69 | 120 | 38 (31.67) | 1 (0.83) | ||