| flock prevalence of exposure to avian adeno-associated virus, chicken anemia virus, fowl adenovirus, and infectious bursal disease virus among ontario broiler chicken flocks. | samples from 231 randomly selected commercial broiler chicken flocks in ontario were tested at slaughter for exposure to chicken anemia virus (cav), fowl adenovirus (fadv), and infectious bursal disease virus (ibdv). fifteen blood samples per flock were collected and analyzed for the presence of antibodies against cav, fadv, and ibdv by elisa or agar gel immunodiffusion test. fifteen cecal tonsils and cloacal swabs per flock were analyzed for the presence of cav, fadv, and ibdv by pcr. the preva ... | 2014 | 24758116 |