论文部分内容阅读
本文通过链状带绦虫虫卵体外孵育和猪体感染，对六钩蚴形态和感染猪体初期的分布进行了观察。体外孵育的六钩蚴有4种不同的运动形式，可能与卵成熟情况有关；定向运动的六钩蚴有感染能力；扫描电镜下不能运动的六钩蚴外有一层单位膜包囊；六个小钩为六钩蚴的运动器官，感染宿主后10～15d开始退化消失。“,”Morphology of oncosphere and early stage distribution of infection in pig was studied througe in vitro incubation and imposed infection on pig. There are four motion patterns of oncosphere which may be related to degree of maturity. Those with oriented motion is of infectious oncosphere. Under scanning electronic microscope ,oncosphere without mobility is found to be wraped with a layer of membrane. The six hooks are the motion organs which sloughs after 10-15 days infectiing the host.