Table 1 Seroprevalence of avian HEV and ALV-J infection in chickens of Shandong and Shaanxi provinces, China
District | Flock/County | Type of birds | Age (weeks) | Total | Positive for avian HEV (%) | Positive for ALV-J (%) |
|---|---|---|---|---|---|---|
Shandong | QDLH/Qingdao | Broiler | 16 | 54 | 23 (42.59) | 1 (1.85) |
YS/Yantai | Broiler | 50–58 | 563 | 202 (35.88) | 24 (4.26) | |
XTLH/Heze | Broiler | 19 | 54 | 12 (22.22) | 1 (1.85) | |
DL/Weifang | Broiler | >60 | 70 | 22 (31.43) | 0 (0) | |
QLDB/Jinan | Layers | 25 | 243 | 142 (58.44) | 3 (1.23) | |
LYLH/Linyi | Broiler | 27 | 138 | 72 (52.17) | 0 (0) | |
Shaanxi | XP/Xianyang | Layers | 50 | 91 | 20 (21.98) | 0 (0) |
GL/Xian | Layers | 50 | 107 | 31 (28.97) | 1 (0.93) | |
TC1/Tongchuan | Layers | 69 | 50 | 16 (32) | 1 (2) | |
YL/Yulin | Layers | 40–49 | 192 | 32 (16.67) | 0 (0) | |
WG/Xianyang | Layers | 35 | 73 | 34 (46.58) | 10 (13.70) | |
PC/Weinan | Layers | 21 | 120 | 41 (34.17) | 1 (0.83) | |
AK/Ankang | Broiler | 21 | 120 | 23 (19.17) | 1 (0.83) | |
FP/Weinan | Broiler | 42 | 120 | 30 (25) | 0 (0) | |
Sum | 700 (35.09) | 43 (2.16) | ||||
p-value | 0.000 | |||||