Efficacy of inactivated velogenic Newcastle disease virus genotype VII vaccine in broiler chickens
Published:August 5, 2020
Summary
Introduction Newcastle disease (ND) is considered one of the most important poultry viral diseases in terms of worldwide distribution and economic impacts. The NDV is classified into lentogenic, mesogenic, and velogenic strains according to the pathogenicity in chickens. The NDV is classified as a member of the orthoavulavirus genus of subfamily Avulavirinae in the Paramyxoviridae ...
Trial better to compare between commercial killed vaccine which contains genotype 2 and killed vaccine which contains strain homologous strain as field strain to evaluate the efficacy of different vaccine against ND genotype 7.
Dear Dr. Mustafa Greeting for sure, comparison between commercial killed vaccine which contains genotype 2 and killed vaccine which contains strain homologous strain as field strain to evaluate the efficacy of different vaccine against ND genotype 7; is a good idea.
We already did it; please check the following articles on engormix
Wael Elfeil Thanks, Professor for your answer and for sharing this interesting article. What about your opinion on the combination of Vector ND plus killed ND and live vaccine?
Mustafa Ezat
Dear DR mustafa
greeting
combination of Vector ND with Inactivated ND, results varies based on the epidemiological situation in each area and type of production
in broiler , you can use vector ND instead of one-day old inactivated ND then use inactivated at 7-9-day of life together with 2-3 live ND in endemic areas
in layers flocks, can use vector ND and it will be add value to the program, if you don't use vector IBD or AIV-H5
if you have any comments, please let me know
Regards
Wael
