摘要
目的掌握鼠疫疫区夜行鼠寄生蚤种类及季节消长规律。方法逐月捕获夜行鼠,梳检鼠体蚤,作种属鉴定并计算染蚤率和蚤指数。结果采集夜行鼠鼠体蚤188匹,隶属于4科8属8种,以二齿新蚤和同型客蚤为优势种,二齿新蚤主要选择性寄生于黑线仓鼠,同型客蚤则以子午沙鼠为主要宿主。夜行鼠染蚤率和蚤指数消长曲线均呈现两个高峰,分别在4月和10月。二齿新蚤的季节消长同夜行鼠寄生蚤总体变化趋势一致,同型客蚤仅出现于4-8月份,以5、6、7月为高峰期。结论同一蚤种在不同地区、不同宿主其消长规律不同,研究当地不同宿主媒介蚤的种类和季节消长对于揭示鼠疫流行规律、有效预防鼠疫具有重要意义。
Objective To know the species and the seasonal fluctuation rule of parasitic fleas of nocturnal rodents in plague epidemic areas. Methods The nocturnal rodents were captured and the parasitic fleas on them were collected every month. Results One hundred and eighty-eight parasitic fleas, belonging to 8 species of 8 genera of 4 families, of which the N. bidentatiformis and X. conformis conformis were dominant species, were collected. The N. bidentatiformis was mainly parasized on Cricetulus barabensis and the X. conformis conformis was mainly parasized on Meriones meridianus. The infecting flea rate and flea index had two peaks in April and October respectively. The seasonal variation of Neopsylla bidentatiformis was the same as total change trend of parasitic fleas of nocturnal rodents. The Xenopsylla conformis conformis was only detected during April to August and it reached a peak in May, June and July. Conclusion The seasonal variation of the same fleas is different from different areas and hosts, and studying of the species and the seasonal fluctuation rule of the local parasitic fleas has great significance to reveal prevalence rule of plague and take effective prevention plague spread.
出处
《中国病原生物学杂志》
CSCD
2008年第2期133-135,共3页
Journal of Pathogen Biology
关键词
鼠疫
夜行鼠
寄生蚤
季节消长
Plague
nocturnal rodents
parasitic flea
seasonal variation
