福建省大田县山羊的寄生蠕虫种群和群落生态分析

从３０只山羊体内检得寄生蠕虫１３种，其中吸虫６种、绦蚴１种、线虫６种．总感染率为１００％，平均感染强度为６４６条．其中以鹿同盘吸虫的感染率、平均感染强度为最高．山羊感染蠕虫种类在１～８种之间．种群分布型均为聚集分布，优势种有８种．该寄生蠕虫群落中各种群感染率和密度与山羊性别和年龄无关．种间关联分析表明该寄生蠕虫群落中具亲和性的种对有７对，关联和负关联达显著水平以上的种对分别有２对和３对．

Ecological analysis of helminth population and community in goats body in Datian county of Fujian Province.

Thirteen species of helminths,including 6 trematoda, 1 cestoda and 6 nematoda, were collected from 30 goats. The total infection rate was 100%, and the mean infection intensity of the helminths was 646. Among the 13 species studied, Paramphistomum cervi had the highest total infection rate and mean infection intensity. The goats were infected by 1 to 8 helminth species which were all aggregated. There were eight dominant species in the helminth community. The infection rate and the density of the helminths had no correlation with the sex and the age of the goats. Interspecific association analysis showed that there were affinities for seven species pairs, and significant positrve and negative associations for two and three species pairs of the helminths, respectively.