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김일연 ( Il-yeon Kim ),이정애 ( Jeong-ae Lee ),정철 ( Cheol Jeong ),윤일채 ( Il-chae Yun ),송재성 ( Jae-seong Song ),정윤정 ( Yun-jung Jung ),이윤미 ( Yun-mi Lee ),임지흔 ( Ji-heun Lim ),이정구 ( Jung-gu Lee ),이성모 ( Sung-mo Le 한국가축위생학회 2017 韓國家畜衛生學會誌 Vol.40 No.2
This study was conducted from May to December 2016 to investigate the prevalence of antibody titers for Newcastle disease (ND), Infectious Bronchitis (IB), Egg drop syndrome (EDS), Avian pneumovirus (APV), Fowl Typhoid (FT), Mycoplasma gallisepticum (MG), Mycoplasma synoviae (MS) in laying hens in Incheon area. In ND, 418 (99.5%) of the 420 outbreaks were positive. IB showed 330 (78.5%) positive antibody out of 420 cases. EDS showed 419 (99.7%) positive seropositive rates among 420 cases. In the case of APV, 357 cases (85%) were positive in 420 cases. In the case of PT, the positive rate of antibody was 128 (30.4%) out of 420 cases. Among the 420 cases of MG, 222 cases (52.8%) were positive for antibodies. In the case of MS, 395 out of 420 cases (94.0%) were positive. This result suggests that the positive rate of antibody for PT in Incheon area was low. And it was also clear that MS without vaccine is now rampant in Incheon.