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用小白鼠传代取得的多房棘球蚴,人工感染家狗和家猫后,在其体内均可得到成熟的成虫。两者成虫的虫卵和孕节用以再感染小白鼠,同样都可发育为正常的多房棘球蚴。狗的粪检最早发现虫卵是在感染后的第39天,从60天后持续至90天为排卵的高峰期。感染39天的狗的剖检证明成虫主要寄生的部位是在小肠,其中回肠成虫数量最多,计1257条,其次为空肠计975条,十二指肠虫数最少,为895条。感染15天猫的剖检所见成虫寄生部位和狗基本相似,回肠虫数最高,计717条,空肠次之为611条,十二指肠计有503条。比较狗、猫所得的成虫数、孕节的含卵数、排卵的持续天数、成虫的发育状况以及成虫存活天数等分析,明显看出家狗比家猫为本虫更适宜的终宿主。 组织化学观察证明成虫和多房棘球蚴的原头节的髓质区是糖原主要的贮存所。顶突、吸盘、睾丸、卵黄腺、子宫壁、虫卵的胚胎以及育囊和不育囊的角质层、生发层等均有糖原分布,但卵巢、顶突钩和卵壳等则不含糖原。此外,顶突、吸盘、肌肉、排泄管、石灰质颗粒以及卵的胚胎等含有丰富的粘多糖和粘蛋白,PAS均呈强阳性反应,但睾丸内含量较少,卵壳呈阴性反应。
Echinococcus multilocularis obtained by passage of mice, artificial infection of domestic dogs and domestic cats, in their body can be obtained mature adult. Both the adult eggs and pregnant women to re-infection of mice, the same can be developed into normal multi-room echinococcosis. Dog feces seizure was first found in eggs is the 39th day after infection, from 60 days to 90 days for the peak ovulation. Autopsy of 39 days of dogs proved that the main parasitic sites of adult worms are in the small intestine, of which the largest number of ileum, accounting for 1257, followed by the jejunum 975, the least number of duodenal, 895. Infected 15-day cat necropsy saw parasite and adult parasites and the dog is basically the same, the highest number of intestinal worms, 717, followed by the jejunum 611, 503 of the duodenum. Comparison of dogs, cats from the number of adults, the number of eggs in the feast of pregnancy, the number of days ovulation, adult development and the number of days of survival of adult analysis, it is clear that domestic dogs than the domestic cats more suitable host for this worm. Histochemical observation showed that the medulla of the adult head and the multifocal echinococcosis area were the main reservoirs of glycogen. Supra, sucker, testis, yolk gland, uterine wall, eggs, embryos and cysts and sterile cysts of the stratum corneum, germinal layer, etc. have glycogen distribution, but the ovary, top hook and egg shell are not Glycogen. In addition, the apex, sucker, muscle, excretion tube, calcareous granule and embryo of egg are rich in mucopolysaccharide and mucin. PAS showed a strong positive reaction, but less testicular content, egg shell was negative.