猪带绦虫囊尾蚴发育规律的实验观察  

EXPERIMENTAL STUDIES ON GROWTH AND DEVELOPMENT OF CYSTICERCUS CELLULOSAE

作　　者：马云祥[1] 刘建侯[1] 王运章[2] 李桂莲[1] 刘文柄 魏广仁 乔思杰[4] 姜红光[4] 陈杼 马新爱[1] 朱长河 

机构地区：[1]河南省卫生防疫站,郑州450003 [2]河南医科大学寄生虫学教研室 [3]柘城县卫生防疫站 [4]河南省肿瘤医院病理科 [5]柘城县食品公司

出　　处：《中国寄生虫病防治杂志》1992年第1期38-41,共4页Chinese Journal of Parasitic Disease Control

摘　　要：本文报告选择出生不久的仔猪,分别感染不同剂量的猪带绦虫卵,然后定期观察受染猪体各个部位组织内囊尾蚴的发育变化。感染后90d 剖检,中度和重度感染猪有17.65～20.11%的虫体发育不成熟,呈粟粒状,无囊泡形成;已形成囊泡的虫体经胆汁培养,翻出头节较短,约3～4mm,不活动。感染后180d 剖检,中度和重度感染组仍可见到不成熟的虫体(约占12.5～22.23%),虫体较90d 时略大,头部已见吸盘、顶突和头钩,但无囊泡形成;成熟之虫体经胆汁培养,头节翻出较长,可见到摆动。至感染后270d,虫体全部发育成熟。本实验表明,囊尾蚴的生长发育成熟时间应为60～270d。各部位囊虫的成熟率,成活率及密度有明显差别;虫体的大小与生长时间和密度有关;中度组重复感染未见虫体密度明显增加,表明机体受感染后可产生一定的保护性免疫。Newborn domestic pigs were infected with Taenia solium eggs at various dosages and therefore divided in-to mild,moderate and heavily infected groups.Changes in development of cysticerci in tissues from variousparts of pigs bodies were examined at regular interval.By the end of the third month after the infection,itwas found that 17.65—20.11% of worms in the moderate and heavily groups remain premature,the pre-mature looked like granular and no bladders formed.Cultured within bile juice,the scolex of the worms wasonly 3—4 mm long but inactive.180 days later,the prematures could still be seen at moderate and heavilygroups(about 12.5—22.23%).But the size of the premature was bigger than that of three months ago,and the acetabulum,rostelum and hook of worms were found,also no bladder was formed.Cultured at theliver bladder juice,the mature showed much larger and active scolex,the cysticerci werecompletely mature.The mature rate and survival rate of the worms in various parts of the pigs are quite different.The size anddevelopment of cysticerci varied inversely with the inoculated dosages of the eggs.The pigs with moderate in-fection rechallenged with the eggs didn't increase the number of cysticerci.This suggested that the pigs ob-tained protective immunity.

关 键 词：猪囊尾蚴 猪绦虫卵 滞育 发育 

分 类 号：R383.34[医药卫生—医学寄生虫学]