关键词: 褐家鼠, 染蚤率, 蚤指数

Abstract: The result in this paper reported that there are 5 genera and 5 species parasitic fleas at Rattus norvegicus in the west of Liaoning Province. There is 9 region difference in the species constitution and the dominant species. Xenopsylla, cheopis is the dominant species in Jinzhou area, the peak of the infestation rate of fleas and the index of fleas is from July to September, the lowest is from January to February. Neopsylla, bidentatiformis the dominant species in Fuxin and Jianping Areas, there are two peaks a year, the first one is in May and the second one is in September. Monopsyllus anisus is the dominant species in Kaiyuan and Changtu Areas.