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Performance of 3 successive generations of specified-pathogen-free chickens maintained as a closed flock
- Furuta, Kenji, Ohashi, Hitoshi, Obana, Jitsuo, Sato, Shizuo
- Laboratory animals 1980 v.14 no.2 pp. 107-112
- Avian encephalomyelitis virus, Avian orthoavulavirus 1, Infectious bursal disease virus, Reticuloendotheliosis virus, Mycoplasma synoviae, Gallid alphaherpesvirus 1, antibodies, Salmonella Pullorum, viruses, Avibacterium paragallinarum, flocks, Infectious bronchitis virus, Mycoplasma gallisepticum, Avian orthoreovirus, Avian leukosis virus, chickens, specific pathogen-free animals, laboratory animals, Fowlpox virus, Mardivirus, Adenoviridae
- No antibodies against Salmonella pullorum, Mycoplasma gallisepticum, Mycoplasma synoviae, Haemophilus gallinarum, fowl pox virus, Marek's disease virus, herpes virus of turkey, infectious laryngotracheitis virus, avian adenovirus, avian reovirus, infectious bursal disease virus, reticuloendotheliosis virus, avian leukosis virus, avian encephalomyelitis virus and Newcastle disease virus were detectable in the sera obtained from these chickens in 3 generations at various ages. Antibodies against infectious bronchitis virus were detected in the sera of the 3rd generations at 66, 74 and 108 weeks of age. The performance of these chickens was nearly the same as that of conventional healthy chickens in the poultry industry, with no tendency to decline.