Study on molecular epidemiological characteristics and prevalence of Circo virus (DuCV) in ducks raised in Bac Giang province

Abstract

This study aimed to identify the molecular epidemiological characteristics and prevalence of Circovirus infected in ducks in Bac Giang province. A total of 640 suspected ducks were sampled and analyzed for the positive rate of duck with Circovirus, PCR assay and sequencing for serotype
identification and phylogenetic tree analysis. The studied results indicated that 39/640 duck samples were positive with DuCV (6.09%). The similarity level of nucleotide sequences of the Circovirus in this study in comparison with nucleotide sequences of the Circovirus published in GeneBank was very high (98.09 to 99.55%). The results of phylogenetic tree analysis showed that the serotypes of Circovirus isolated in Bac Giang province were similar with serotypes of Circovirus published in China, Korea and
United States. This is initial study indicating the prevalence of Circovirus in ducks raising in Bac Giang province as well as in the northern provinces of Viet Nam. This is also a scientific basis for diagnosis, prevention and treatment of Circovirus disease in duck raising in the northern provinces, Viet Nam.