Epidemiological Investigation of Riemerella Anatipestifer Infection in Guizhou Province in 2021-2023
In this investigation,the incidence of Riemerella anatipestifer infection in Guizhou province were analyzed by clinical symptom and pathological observation,pathogen isolation and identification and epidemiological investigation.The results showed that the isolation rate of Riemerella anatipestifer was 8.43%from 1328 of the collected suspected case tissue samples,which the main dominant serotype was serotype 2(76.92%).The incidence rate of Riemerella anatipestifer infection was respectively 14.80%,6.05%,4.94%and 14.27%in spring,summer,autumn and winter.The incidence rates were respectively 8.77%,10.50%and 15.32%in large-scale farms,breeding communities and free-range households,and respectively 23.15%,8.53%and 0.08%in ducklings,reared ducks and adult ducks.These results indicated that there are varying degrees of Riemerella anatipestifer infection with mainly serotype 2 in duck farms in Guizhou Province,which mainly affects ducklings in clinical practice,and more incidence in winter and spring and in free-range households.Therefore,it is necessary to strengthen the prevention and control of Riemerella anatipestifer infection in duck farms.
Duck infectious serositisEpidemiological InvestigationGuizhou province
NETL
NSTL
万方数据
