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The impact of Levamisole on Newcastle disease antibodies titer in broilers fed with diet contaminated with Aflatoxin | ||
| The Iraqi Journal of Veterinary Medicine (IJVM) | ||
| Article 1, Volume 30, Issue 1, 2006, Pages 35-42 PDF (0 K) | ||
| Author | ||
| Hatem M. M. AL- Naemey | ||
| Abstract | ||
| This study designed to know the immuno suppressor effect of aflatoxins and the efficacy of levamisole to reduce these effects in the titer of antibodies and protection against challenge for Newcastle disease vaccine in chickens. This trail include three groups, first group fed on ration free from aflatoxins contamination, Second group fed on ration contaminated with aflatoxins, while the third group fed on the same ration of second group and given levamisole via drinking water with the dose of 10mg/kg of body weight. All groups vaccinated twice against Newcastle disease at 10 and 20 days of age. The immunity evaluated by ELISA test at 6, 19, 31 days of age and challenged at 32 days old. The results indicate that the second group has the lowest titer of antibodies and protection ratio after challenge, while the first group has the hightest titer of antibodies and high protection ratio after challenge. The titer of antibodies and the protection against challenge in the third group had higher titer than them at second group and lower than them at first group. These results revealed the role of aflatoxins in immunosuppression for Newcastle vaccines and reduce the efficacy of vaccination process and reduce the protection ratio after challenge, also reveal the role of levamisole in reducing of these effect and elevation of immune response to Newcastle vaccine in chickens. | ||
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