An investigation of duck circovirus and co-infection in Cherry Valley ducks in Shandong Province, China

作者：Zhang Xingxiao; Jiang Shijin; Wu Jiaqiang; Zhao Qin; Sun Yani; Kong Yibo; Li Xiaoxia; Yao Meiling; Chai Tongjie^*

来源：Veterinary Microbiology, 2009, 133(3): 252-256.

DOI：10.1016/j.vetmic.2008.07.005

• Cherry Valley duck
• DuCV
• Co-infection

The co-infection of duck circovirus (DuCV) with Riemerella anatipestifer (RA) or/and Escherichia coli (E. coli) or/and duck hepatitis virus I (DHV-I) in Cherry Valley ducks in China's Shandong Province was investigated by using polymerase-chain-reaction (PCR)based methods. For this study, 742 ducks sampled at random from 70 duck farms during 2006-2007 were examined using PCR and dot-blot hybridisation (DBH) tests. Overall the DuCV infection rate was 33.29%. Compared with those at 2 weeks of age, the ducks at 3-4 weeks of age were more susceptible to DuCV infection. Compared with the DuCV-negative ones, the DuCV-positive ducks had a higher rate of infection by DHV-I (25.5% vs. 7.475%), RA (23.48% vs. 8.28%) and E. coli (16.19% vs. 4.85%). This investigation shows that DuCV infection is common in Cherry Valley ducks on some farms in Shandong Province.

• 出版日期2009-1-13
• 单位山东农业大学