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目的了解我国西南部分地区(四川、重庆)主要蛙类裂头蚴的自然感染情况。方法 2014年7~8月分别在四川省(营山县、合江县、邻水县及泸州市江阳区)和重庆市(渝北区、南川区、梁平县及石柱县)的农村池塘、河流及农贸市场采集蛙类,剖检裂头蚴并进行统计学分析。结果共剖检蛙164只,其中裂头蚴感染蛙42只,总感染率25.61%(42/164);检获裂头蚴167条,平均感染强度为3.98条/蛙(167/42)。四川省和重庆市蛙类裂头蚴的感染率分别为31.50%(40/127)和5.41%(2/37),两地感染率间的差异具有显著统计学意义(x2=10.238,P=0.001);其中四川省部分地区蛙类裂头蚴的感染强度(4.03)略高于重庆(3.00)。结论我国西南部分地区(四川、重庆)均存在蛙类自然感染裂头蚴的现象。
Objective To understand the natural infection of the major frogs in the Southwestern part of China (Sichuan and Chongqing). Methods From July to August 2014, rural ponds in Sichuan Province (Yingshan County, Hejiang County, Linshui County and Luzhou City) and Chongqing Municipality (Yubei District, Nanchuan District, Liangping County and Shizhu County) , Rivers and farmers market frogs collected, dissecting the sparganosis and statistical analysis. Results A total of 164 frogs were detected, of which 42 were infected by the sporozoite larvae, with a total infection rate of 25.61% (42/164). A total of 167 larvae were collected and the average infection intensity was 3.98 / frogs (167/42). The infection rates of fissure larvae in Sichuan Province and Chongqing were 31.50% (40/127) and 5.41% (2/37), respectively. There was a significant difference in infection rates between the two places (x2 = 10.238, P = 0.001) Among them, the infection intensity of fissure larvae (4.03) in some areas of Sichuan Province was slightly higher than that of Chongqing (3.00). Conclusion Frogs naturally infected with spider cercariae were found in some areas of Southwest China (Sichuan and Chongqing).