Evaluation of Three Different Vaccination Regimes Against Newcastle Disease in Central Anatolia

Authors : Osman ERGANİŞ, Uçkun Sait UÇAN

Pages : 1065-1069

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Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :A change in the vaccination strategy used in the Central Anatolia region of Turkey to combat the effects of infections with endemic virulent Newcastle disease virus insert ignore into journalissuearticles values(NDV); in maternally immune birds is described in this retrospective work. A novel vaccination schedule was applied to approximately 2,230,000 chickens from different breeds. The alterations were based on the use of an inactivated NDV + infectious bursal disease virus insert ignore into journalissuearticles values(IBDV); and the application of aerosol vaccines with different timings compared to traditional programmes. In a district in which Newcastle disease insert ignore into journalissuearticles values(ND); epidemics had been occurring, a satisfactory humoral protection insert ignore into journalissuearticles values(mHI titre >log 27); was achieved in birds up to 9-11 weeks of age by the early administration of inactivated NDV + IBDV vaccine. It is suggested that inactivated NDV + IBDV vaccination at 1 week of age be recommended as an alternative procedure to prevent both ND and infectious bursal disease insert ignore into journalissuearticles values(IBD);, although the data presented here on immunity to IBD was essentially restricted to clinical observations.
Keywords : Newcastle disease, vaccination, retrospective, chicken