Immunogenicity and efficacy of NewFluRazi vaccine against Newcastle disease in SPF chickens.
Newcastle Disease (ND) is a major poultry disease worldwide causing substantial economic losses in the poultry production system. This research aimed to assess efficacy of the NewFluRazi vaccine to in protecting against Newcastle disease. In the study, 90 specific pathogen-free (SPF) chickens, 21 days old, were randoml...