Performance of 3 successive generations of specified-pathogen-free chickens maintained as a closed flock

Author:

Furuta Kenji1,Ohashi Hitoshi1,Obana Jitsuo1,Sato Shizuo2

Affiliation:

1. Poultry Disease Laboratory, National Institute of Animal Health, Kurachi, Seki, Gifu 501-32, Japan

2. Poultry Disease Laboratory, National Institute of Animal Health, Kurachi, Seki, Gifu 501-32, Japan; Feed Safety Research Division, National Institute of Animal Health, Kannondai, Yatabe-machi, Tsukuba-gun, Ibaraki-ken, 305 Japan

Abstract

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.

Publisher

SAGE Publications

Subject

General Veterinary,Animal Science and Zoology

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