厦门地区鸭鹅绦虫生活史研究

本文报告了福建厦门地区寄生于鸭鹅类的膜壳科绦虫计5属9种。实验阐明了5种绦虫的生活史,其中有三种生活史为我国首次报告。厦门地区有5种嵌水甲壳类可作膜壳绦虫的中间宿主。其中短角异剑水蚤(Apocyclops royi)是矛形剑带绦虫和片形皱缘绦虫的审间宿主,不等异介虫(Heterocypris anomala)为新发现的棘盘双睾绦虫的中间宿主,介虫(Cyprinotus sp.)为新发现的美丽膜壳绦虫的中间宿主。

STUDIES ON THE DEVELOPMENTAL CYCLE OF CESTODES FROM DOMESTIC DUCKS AND GEESE IN XIAMEN, CHINA

During 1981-1984, a total of 250 ducks and geese were examined in Xiamen, Fujian. It was found that 92 out of 228 ducks (40.4%) and 6 out of 22 geese (27.3%) were found to be infected with 9 species of cestodes, such as (1) Hymenolepis paramicrosoma, (2) H. gracilis, (3) H. ventista, (4) H. setigera, (5) H. przewalskii, (6) Drepanidotaenia lanceolata, (7) Diorchis stefanskii, (8) Dicranotaenia coronuna and (9) Fimbriaria fasciolaris.The development of larval stages within the hemocoele of intermediate hosts of five species of cestodes, namely Hymenolepis ventista, H. setigera Fimbriaria fasciolaris, Drepanidotaenia lanceolata and Diorchis Stefanskii were also studied, and the specific characters of each stage of larvae, especially their cysticercoids, were carefully studied and compared. It was revealed that they had a general pattern in the course of their oncogenesis. The process of larval growth can be divided into five stages: (1) oncosphere stage, (2) lacuna stage, (3) cysticavity stage, (4) scolex formation stage, and (5) cysticercoid stage. Based on our observations, the features of these Hymenolepidate cysticercoids, including the shape and size of cysticercoid, the cystic wall and fibrous membrane, the shape, size and number of rostellar hooks etc. can be identified as the specific diagnostic characters of species.