Determination of Duck circovirus (DuCV) and Riemerella anatipestifer (RA) in several cases of septicemia disease from duck flocks by PCR technique

Abstract

The purpose of current study aimed at determining the prevalence of Duck circovirus (DuCV) and Riemerella anatipestifer (RA) in several duck flocks farming in Southern provinces by applying the optimized PCR protocol. From 37 surveyed farms belonging to many localities, the prevalence of DuCV and RA varying among the different farms was identified. There were 4/37 farms and 5/76 samples positive with DuCV, corresponding to 10.81% and 6.58%; 25/37 farms and 41/76 samples were positive with RA, corresponding to 67.57% and 53.94%. The co-infection of DuCV and RA in ducks was also identified (3/76 samples, accounted for 3.94%) and (2/37 farms, accounted for 8.11%). This is the first identification of presenting DuCV and RA on several disease cases collecting from the various duck flocks in our country. The role of DuCV relates to the injury of lympho tissues, leads to the depletion of immunity and then increases susceptibility to the secondary infections in the domestic duck flocks should be further studied.