Newcastle disease affects birds of different breeds and ages (turkeys, quails, guinea fowls, chickens). Given the possibility spreading by other species, including migratory birds, it makes more sense to immunize chickens during their long-distance migration. The main measure prevention remains its competent specific with use live inactivated vaccines, as specialists Khankai branch Khorol Veter...

Newcastle disease (ND) is a major threat to poultry industry production throughout developing countries. The Newcastle disease viruses (NDVs) infecting industrialized and indigenous poultry in Iran are velogenic strains and responsible for the frequent outbreaks of ND in poultry farms even in vaccinated flocks causing serious economic losses in the commercial and indigenous poultry. However, va...

In the present study, the potency and immunogenicity of the inactivated bivalent vaccine of Newcastle disease (ND) and avian influenza (AI) produced by Razi institute in Iran were compared with a similar imported vaccine administered by standard methods to specific-pathogen-free (SPF) chicken. A total of 150 twenty-one-day-old SPF chickens were used for evaluating Razi and imported inactivated ...

abstract background and aims: newcastle disease (nd) is a highly contagious disease that affects many species of birds and causes significant economic losses to the poultry industry worldwide and the pathogenicity of newcastle disease virus (ndv) strains varies with different virulence. we aim to detect lentogenic (low virulence) nd virus (nd/ir 2010) using sentinel birds and molecular detectio...

Newcastle disease virus (NDV) is a prototype member of avian paramyxovirus serotype 1 (APMV-1), which causes severe and contagious disease in the commercial poultry and wild birds. In this study, we report the results of phylogenetic analyses of recent NDVs isolated from Markazi province of Iran during a recent outbreak in the commercial broiler with respiratory signs and digestive system lesio...

Plants have been studied for the production of pharmaceutical compounds for more than two decades now. Ever since the plant-made poultry vaccine against Newcastle disease virus made a breakthrough and went all the way to obtain regulatory approval, research to use plants for expression and delivery of vaccine proteins for animals was intensified. Indeed, in view of the high production costs of ...

newcastle disease is one of the most important diseases of poultry. it usually causes a great loss inpoultry industry and domestic village chickens. since domestic chickens in villages are free ranging for food,the chance of their contact with wild birds that may act as reservoirs is high. to determine the role ofdomestic chickens in the epizootiology of newcastle disease virus in villages of i...

in the present study, 360 male day-old broiler chicks were used to determine the effect of mixed livevaccines of newcastle disease (nd) and infectious bronchitis (ib) on serum and local antibody responses toib. chicks were randomly divided into 12 treatment groups of 3 replicates and reared for 40 days on floorpens. groups 1 to 5 received mixed nd and ib vaccine. groups 7 to 11 received ib vacc...