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Online Journal of Veterinary Research

Volume 24 (4):217-223, 2020.

Effect of malt supplement on immune markers in broilers vaccinated avian influenza H9N2.


Forough Talazadeh1 *, Mansoor Mayahi2, and Mehrdad Fathi 3


1Associate Professor, Department of Clinical Sciences,-2 Professor, 3DVM, Department of Clinical Sciences, Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, Ahvaz, Iran.




Talazadeh F, Mayahi M, Fathi M., Effect of malt supplement on immune markers in broilers vaccinated avian influenza H9N2, Onl J Vet Res., 24 (4):217-223, 2020. We report effect of malt extract supplement in drinking water on antibody titers to influenza H9N2 vaccine in broiler chickens. Groups of 15 one-day-old Ross broilers were bled before vaccination and then supplemented 0.2, 0.3 and 0.5% malt extract in drinking water daily. Controls were not given the supplement or vaccinated. Chicks were vaccinated avian Influenza-Newcastle disease (AI-ND) subtype H9N2 killed vaccine subcutaneously at day 9. Blood was taken before vaccination and on day 14, 21 and 28 for antibody titer of avian influenza vaccine by Hemagglutination Inhibition test (HI test). The results of this research showed that none of three doses of malt extract had a significant effect on antibody response against AI vaccine.


Keywords: Avian Influenza Virus (AIV), malt extract, immune response, broiler chickens