Samples of feces, egg and oviducts from egglayers infected experimentally with egg drop syndrome virus were examined by using photobiotin-labelled EDSV-DNA and pUC-19 plasma recombinant as probe.

• 应用光敏生物素标记EDSV－DNA与pUC19重组质粒DNA做探针，检测人工发病减蛋综合症蛋鸡的粪便、蛋、输卵管样品，以新城疫病毒（NDV）、传染性囊病病毒（IBDV）、传染性支气管炎病毒（IBV）、包涵体肝炎病毒（IBHV）作对照。