| 摘要: |
| 对陕西省宝鸡市等9个市(县、区)的35个EDS-76非免疫鸡群和某大型养鸡场的14个EDS-76免疫鸡群进行了流行病学调查,并采集505份血清(其中非免疫鸡群323份,免疫鸡群182份)用微量血凝抑制试验进行了EDS-76抗体监测。首次确定陕西省确有EDS-76的发生与流行,其非免疫鸡群的阳性率为35.09%,有60%的鸡群受到感染,发病情况和病程与国内外报道的基本一致。调查结果还表明:红壳蛋鸡比白壳蛋鸡对该病更为易感;疫苗注射对该病的发生具有很好的预防作用。 |
| 关键词: 产蛋下降综合征，流行病学，血凝抑制抗体，阳性率 |
| DOI： |
| 分类号:S858.310.53 |
| 基金项目:杨陵农业科技开发基金资助项目 |
|
| Investigation of Egg Drop Syndrome of Chickens in Guanzhong Area of Shaanxi Province |
|
ZhaoYufangYangZengqiZhangShuxiaHeHongquanWuLianfuKangZuowen
|
| Abstract: |
| The incidence and prevalence of Egg Drop Syndrome-1976 (EDS-76) of
chickens in Shaanxi Province was determined firstly by epidemiological investigation and
serological methods (HI test).The positive rates of individual birds and chicken flocks
were 35.09% and 60%, respectively. The incidence state and course of the disease
showed no difference from that has been reported both at home and abroad.
Furthermore,the paper indicated that: (1) The vulnerablity to the disease was higher in
red shell egg chickens than in white shell egg ones; (2) Riliable vaccination could
prevent this disease more effectively before start laying. |
| Key words: EDS-76,epidemiology,HI antibody,positive rates |
