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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 ...

Related topics:

#Poultry vaccines

#Newcastle disease

Authors:

Mohamed Fawzy Elsawy

Wael Elfeil

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Mustafa Ezat

24 de agosto de 2020

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.

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Wael Elfeil

24 de agosto de 2020

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

https://en.engormix.com/poultry-industry/articles/evaluation-some-vaccination-programs-t45290.htm

or original publication: https://thescipub.com/abstract/ajavsp.2019.197.206

Please read it and give us feedback
Regards
Wael

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Mustafa Ezat

25 de agosto de 2020

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?

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Wael Elfeil

30 de agosto de 2020

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

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Mustafa Ezat

30 de agosto de 2020

Wael Elfeil Thanks Dr Wael

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