无锡地区鸡弓形虫感染的血清流行病学调查

Seroepidemiological survey of chickens infected with Toxoplasma gondii in Wuxi City

目的了解无锡地区散养鸡的弓形虫感染状况。方法应用ELISA方法调查无锡地区309例散养鸡的弓形虫抗原、抗体阳性率,并与150例集约化养殖鸡的弓形虫感染率进行比较,其中一项阳性即视为弓形虫感染阳性。结果 309例散养鸡中,抗原阳性29例,阳性率为9.39%;抗体阳性53例,阳性率为17.15%;双阳性13例,双阳性率为4.21%;散养鸡总体阳性率为22.33%。集约化养殖鸡总体弓形虫感染率为2.67%。散养鸡感染率显著高于集约化养殖鸡感染率(χ2=29.19,P<0.01)。结论无锡地区散养鸡群弓形虫感染率较高,应引起重视。

Objective To understand the status of scattered chickens infected with Toxoplasma gondii in Wuxi City.Methods We investigated the positive rate of Toxoplasma antigen and antibody of 309 cases of scattered chickens in Wuxi,and it was compared with the positive rate of Toxoplasma antigen and antibody of 150 cases of intensive farming chickens.Results In the 309 cases of scattered chickens,there were 29 cases of antigen positive,and the positive rate was 9.39%;there were 53 cases of antibody positive,and the positive rate was 17.15%;there were 13 cases of antigen and antibody double positive,and the double-positive rate was 4.21%.;In the scattered chickens,the overall positive rate was 22.33%,and in the intensive farming chickens,the overall positive rate was 2.67%,and there was a significant difference between them（= 29.19,P 0.01）.Conclusion There is a high T.gondii infection in scattered chickens in Wuxi,so the medical,veterinary and food hygiene workers should pay more attention to it.