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- W638159089 abstract "In the Spring and Surnmer of 2004, an unusually high prevalence of broiler chicken carcasses condemned for airsacculitis was observed in Quebec. A paired case control study was undertaken between May 2005 and February 2006, to identify risk factors as weIl as strains of infectious agents associated with airsacculitis among broiler chickens. A total of 29 flocks with high airsacculitis prevalence were compared to 29 flocks with low prevalence. For each case and control flocks: blood samples, lung, kidney and caecal tons ils were randomly collected. Serological testing was performed using an enzyme linked immunosorbent assay and isolated viruses were tested by PCR amplification followed by restriction fragment length polymorphism (RFLP) or nucleotide sequencing. The relationship 'between variables obtained and flock status was assessed by conditional multivariable logistic regression analysis. The final model we obtained in this study demonstrated the importance of two non-infectious risk factors: darkling beetle control (OR=0.040, 95%CI: 0.003, 0.545) and changing boots or plastic overboots between poultry barns (OR=0.101, 95%CI: 0.010, 0.990). AIso, this study has shown that the infectious component of the etiologic complex associated with airsacculitis condemnations was represented by Adenoviruses were the most prevalent viruses in both case and control flocks (no significant difference) followed by infectious bursal disease virus (lBDV), 1 detected in 25 of the 29 case flocks. A marginally significant association was found between IBDV and being a case (p = 0.061). Infectious bronchitis virus (lBV) was isolated in 23 of the 29 case flocks with high airsacculitis prevalence, and significant association was found between IBV and being a case (P=0.0012). The Qu_mv IBV strain was the most prevalent in case flocks. The lack of biosecurity on several farms could explain the high airsacculitis condemnation rate observed at processing plants." @default.
- W638159089 created "2016-06-24" @default.
- W638159089 creator A5079395670 @default.
- W638159089 date "2008-10-09" @default.
- W638159089 modified "2023-09-27" @default.
- W638159089 title "Facteurs de risque associés à la prévalence d'aérosacculite à l'abattoir chez le poulet de chair" @default.
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- W638159089 hasPublicationYear "2008" @default.
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