Comparison of the Effectiveness of Two Different Vaccination Regimes for Avian Influenza H9N2 in Broiler Chicken
Published: December 21, 2020
Summary
1. Introduction The poultry industry has been suffering from several pathogens in Egypt during recent decades, including avian influenza viruses (AIV) that may be either highly pathogenic avian influenza (HPAIV; H5N1, H5N2, H5N8) or low-pathogenic avian influenza (LPAIV; H9N2) viruses, velogenic Newcastle disease virus (vNDV), infectious bronchitis virus (IBV; variant 1, variant 2, and classic...
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30 de diciembre de 2024
Very informative and very good job...
I would like to ask if is there any data about the comparison between the vaccinated and non-vaccinated groups in mortality rate,
Is the statistical P value of the HI test at 21-28 days considering significant differences between vaccination at 1 - 7 days of age?
And does the amount of shedding between different groups have a negative impact on other birds or with a low amount that may not significantly affect them?
Thanks in advance
I would like to ask if is there any data about the comparison between the vaccinated and non-vaccinated groups in mortality rate,
Is the statistical P value of the HI test at 21-28 days considering significant differences between vaccination at 1 - 7 days of age?
And does the amount of shedding between different groups have a negative impact on other birds or with a low amount that may not significantly affect them?
Thanks in advance
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Nelson Ward
dsm-Firmenich
Manager, New Business Development at DSM Nutritional Products Inc.
United States
United States
