Anguillid herpesvirus (AngHV) is the causative agent of ‘mucus sloughing and hemorrhagic septicemia disease’ in eels. Egg yolk immunoglobulin (IgY) has been reported to serve as oral administration of antibodies against bacterial and viral pathogens. In this study, an inactivated vaccine of AngHV was developed to immunise the laying hens, thereby facilitating the production of anti‐AngHV IgY. The yolks were subsequently collec...