Boes J, Willingham A L, Fuhui S, Xuguang H, Eriksen L, Nansen P, Stewart T B
Danish Centre for Experimental Parasitology, Royal Veterinary and Agricultural University, Frederiksberg.
J Helminthol. 2000 Mar;74(1):45-52.
The prevalence of helminths in pigs was investigated in five rural communities situated on the embankment of Dongting Lake in Zhiyang County, Hunan Province, People's Republic of China, in an area known to be endemic for Schistosoma japonicum. The helminth prevalences identified on the basis of faecal egg count analysis were: Oesophagostomum spp. (86.7%), Ascaris suum (36.7%), Metastrongylus spp. (25.8%), Strongyloides spp. (25.8%), Trichuris suis (15.8%), Globocephalus spp. (6.7%), Gnathostoma spp. (4.2%), Schistosoma japonicum (5.0%) and Fasciola spp. (1.3%). Post mortem examinations of a small number of pigs depositing eggs of different helminth species revealed the presence of Oesophagostomum dentatum, O. quadrispinulatum, A. suum, Metastrongylus apri, M. pudendotectus, T. suis, G. hispidum and Ascarops dentata. Prevalences of all helminths, with the exception of Oesophagostomum spp., were higher in young pigs (< 8 months old) compared with adult pigs. Prevalences of trematodes were very low, especially for S. japonicum which had decreased dramatically compared with previous reports from this area of P.R. China, whereas prevalences of nematodes were generally in agreement with those reported from other Yangtze River Provinces. Results from helminth prevalence studies in pigs, conducted in other provinces of P.R. China between 1987 and 1997, are presented and discussed. It was concluded that a government helminth control programme, implemented in 1995 to control S. japonicum infection in pigs in Hunan Province, may have resulted in a greatly reduced prevalence of S. japonicum in pigs in this region.
在中国湖南省芷阳县洞庭湖堤岸的五个农村社区,对猪体内蠕虫的流行情况进行了调查。该地区是日本血吸虫的流行区。基于粪便虫卵计数分析确定的蠕虫流行率如下:结节虫属(86.7%)、猪蛔虫(36.7%)、后圆线虫属(25.8%)、类圆线虫属(25.8%)、猪鞭虫(15.8%)、球首线虫属(6.7%)、颚口线虫属(4.2%)、日本血吸虫(5.0%)和片形吸虫属(1.3%)。对少数排出不同蠕虫种类虫卵的猪进行尸检,发现有齿结节虫、四棘结节虫、猪蛔虫、野猪后圆线虫、阴户后圆线虫、猪鞭虫、多刺球首线虫和齿状蛔状线虫。除结节虫属外,所有蠕虫在幼猪(<8个月龄)中的流行率均高于成年猪。吸虫的流行率非常低,尤其是日本血吸虫,与中国该地区以前的报告相比大幅下降,而线虫的流行率总体上与长江其他省份报告的一致。文中介绍并讨论了1987年至1997年期间在中国其他省份进行的猪蠕虫流行率研究结果。得出的结论是,1995年实施的一项政府蠕虫控制计划,旨在控制湖南省猪的日本血吸虫感染,可能导致该地区猪体内日本血吸虫的流行率大幅降低。