Newcastle disease is an important viral disease, that its occurrence and virulence was increase in Iran in recent years. Therefore, in order to control the disease incidence effective vaccination program has been important. The objective of this study was comparison 3 types of vaccines include La Sota, Avinew, and Clone30 on broiler chickens. In this study 360 day old, Ross broiler chicks divid...

Since 2002, following its introduction, the lineage 5d Newcastle disease virus (so-called Goose paramyxovirus - GPMV) strain has caused numerous disease outbreaks among commercial and backyard poultry in South Africa, raising questions about the ability of commercially available Newcastle disease vaccines to fully protect poultry against the strain. This study aimed to determine whether there a...

Current vaccination strategies for commercial poultry using live attenuated and inactivated Newcastle disease (ND) vaccines have some limitation and difficulties, and new vaccines with distinct features are needed. Recently, in ovo vaccination technology is concerned as a safe, efficacious, and convenient method. Common ND vaccines used in chickens cannot be employed in ovo due to embryo toxici...