摘要
目的观察不同宿主粪便中日本血吸虫虫卵存活时间。方法采集日本血吸虫虫卵阳性居民、水牛、猪、兔子和鼠等不同宿主粪便,观察不同宿主粪便中虫卵的孵化率,以及不同温度和不同时间内虫卵的存活情况。结果来自猪、鼠、人、兔和水牛新鲜粪便中血吸虫虫卵的孵化率分别为78.9%、53.7%、41.7%、28.9%和22.1%。在37℃、30℃、20℃和4℃温度下不同时段粪便中虫卵存活率差异很大,其中干燥和样本粪便的大小是影响虫卵存活的重要因素。水牛和猪粪便中虫卵存活率高,随着温度的降低存活率逐渐增加。结论不同宿主粪便中虫卵的孵化率,以及不同温度和不同时间内虫卵的存活情况存在显著性差异。
Objective To observe the survival time of Schistosoma japonicum eggs in faeces from human and domestic animals at different temperatures. Methods The hatchability and survival time of Schistosoma japonicum eggs from faeces of man, water buffaloes, pigs, rabbits and mice at different temperatures (37℃, 30 ℃, 20℃ and 4 ℃) were assessed. Results The hatching percentage in fresh faeces from pigs, mice, humans, rabbits and water buffaloes were 78.9%, 53.7%, 41.7%, 28.9% and 22.1%, respectively. The survival time at different temperatures varied markedly among species, desiccation and the size of the faecal sample are also important influential factors. Survival was particularly high in faeces from water buffaloes and pigs and was generally increased with decreasing temperatures. Conclusion Significant difference existed in the hatchability and survival of Schistosoma japonicum egg in faeces from human and domestic animals at different temperature among species
出处
《热带病与寄生虫学》
2009年第1期25-27,共3页
Journal of Tropical Diseases and Parasitology
关键词
血吸虫卵
孵化率
生存
终宿主
Schistosomajaponicum egg
Hatchability
Survival
Definitive host
