中国动物传染病学报2016，Vol.24Issue(1)：15-21,7.
规模化蛋鸡场H9N2亚型禽流感疫苗免疫效果调查
FIELD EFFICANY OF H9 SUBTYPE AVIAN INFLUENZA VACCINE IN LAYING HENS IN HUBEI
摘要
Abstract
In order to investigate the immune effect of H9N2 subtype avian influenza vaccine on large-scale layer farms in Hubei province, 2189 blood samples were randomly collected from January to December 2014 from poultry farms in 13 regions. The antibody titers of H9N2 subtype Avian influenza virus were determined in hemagglutination inhibition test (HI). The results showed a rising trend of the average HI antibody titers from January to May. The antibody titers were the lowest (9.26log2) in January and the highest (12.34log2) in May. In addition, there were some differences between 13 different regions with the lowest antibody titer at 5.76log2 and the highest titer at 11.58log2. The results also showed that the average antibody titers increased gradually with the aging. The average antibody titer was the lowest at 10.21log2 when chicken were less than 120 days old while the average antibody titer was the highest at 11.31log2 when the hens were more than 300 days old. The investigation concluded that the antibody level of H9N2 subtype avian influenza vaccine was good in general good and the qualified or excellent immune protection was relatively high on layer farms in Hubei province. However,some differences in the antibody titers of H9N2 subtype avian influenza vaccine were observed in different regions, ages and months of the year.关键词
禽流感/H9N2亚型/蛋鸡场/免疫效果Key words
Avian influenza/H9N2 subtype/layer farm/immune effect分类
农业科技引用本文复制引用
汪招雄,欧阳金旭,杨玉莹,杨丰利,江涛,陈雪娇..规模化蛋鸡场H9N2亚型禽流感疫苗免疫效果调查[J].中国动物传染病学报,2016,24(1):15-21,7.基金项目
长江大学校基金 （）
