Detection of chicken anemia virus and infectious bursal disease virus co-infection in broilers
Keywords:Chicken, Chichen Anemia Virus, Infectious Bursal Disease Virus, Coinfection, PCR
AbstractThis survey aimed to investigate chicken anemia virus (CAV) in broilers flocks experimenting retarded growth and increasing mortality since the fourth day of age. Clinically, chickens presented depression, paleness, depigmentation and retarded growth. At necropsy, chickens presented CAV-compatible lesions. Samples from liver, spleen and thymus were tested by PCR for a 675-bp fragment of the CAV VP-1 gene, and all tested samples were positive. Serological and molecular techniques did not detect other pathogens, such as adenovirus, reovirus, astrovirus, infectious bursal disease and avian infectious bronchitis virus. These results showed that chicken anemia virus (CAV) may occur since the first few days of life in broilers - a fact not as yet reported -, associated with high pathogenic Infectious Bursal Disease Virus (IBDV) vaccine strain may induce a persistent growth retarded for several weeks in broilers.
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Chacón, J. L., Nogueira, E. O., Bretano, L., Gomes, C. R., Astolfi-Ferreira, C. S., Villarreal, L., & Ferreira, A. J. P. (2010). Detection of chicken anemia virus and infectious bursal disease virus co-infection in broilers. Brazilian Journal of Veterinary Research and Animal Science, 47(4), 293-297. https://doi.org/10.11606/issn.1678-4456.bjvras.2010.26828
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