Stradowski M
Zakład Biologii Ogólnej i Parazytologii Instytutu Biostruktury AM, Warszawa.
Wiad Parazytol. 1996;42(2):185-95.
Tapeworms obtained 13 months after the administration to rats of cysticercoids Hymenolepis diminuta - WMS il1 measured in 3-6-specimen populations an average of 677.9 mm in length while in 23-26-specimen populations an average of 356.9 mm in length. Strobilas of an exclusively unilateral (right-sided) position of genital pores (PGP) appeared in 76.3%-79.8% of tapeworms of the investigated groups. In such tapeworms belonging to 23-26-specimen populations the frequency of occurrence of typical proglottids containing 1 testis on the poral side and 2 testes on the aporal side (1p2a) and type 0p3a proglottids averaging 86.5% and 6.8%, respectively, declines in comparison to the average frequency of occurrence of proglottids of this type in 3-6-specimen populations amounting to 87.8% and 8.8%, respectively. The frequency of occurrence of four-testes (1p3a) proglottids averaged 5.5% in tapeworms from the 23-26-specimen populations and was 4.0% higher than the 1.5% average in tapeworms from the 3-6-specimen populations, in spite of the fact that in a population with a higher number of specimens proglottids are smaller and, therefore, have less room for an additional number of these organs. In tapeworms with variable PGP type 2p1a proglottids constituted the most frequent deviation in each of investigated group of different infection intensity. Their average frequency of occurrence rose from 0.4%-0.5% in tapeworms with unilateral PGP to an average of 5.5%-5.9% in tapeworms with variable PGP. Close positive correlation was found in tapeworms with variable PGP between the frequency of occurrence of such changes and the frequency occurrence of type 2p1a proglottids in every of investigated group (P < 0.01, r = from +0.887, to +0.918).
在给大鼠投喂微小膜壳绦虫似囊尾蚴-WMS il1 13个月后获得的绦虫，在3 - 6条虫体的群体中，其平均长度为677.9毫米，而在23 - 26条虫体的群体中，平均长度为356.9毫米。在所研究组的绦虫中，生殖孔（PGP）仅处于单侧（右侧）位置的链体出现在76.3% - 79.8%的绦虫中。在属于23 - 26条虫体群体的此类绦虫中，含1个睾丸在poral侧和2个睾丸在apor侧的典型节片（1p2a）以及0p3a型节片的出现频率分别平均为86.5%和6.8%，与3 - 6条虫体群体中此类节片的平均出现频率（分别为87.8%和8.8%）相比有所下降。在23 - 26条虫体群体的绦虫中，四睾丸（1p3a）节片的出现频率平均为5.5%，比3 - 6条虫体群体的绦虫平均1.5%的频率高4.0%，尽管在虫体数量较多的群体中节片较小，因此这些器官额外增加的空间较小。在PGP类型可变的绦虫中，2p1a节片是不同感染强度的每个研究组中最常见的变异类型。它们的平均出现频率从单侧PGP绦虫的0.4% - 0.5%上升到PGP类型可变绦虫的平均5.5% - 5.9%。在PGP类型可变的绦虫中，在所研究的每个组中，此类变化的出现频率与2p1a节片的出现频率之间发现密切的正相关（P < 0.01，r = 从 +0.887到 +0.918）。
