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首页> 外文期刊>Journal of Parasitology >LIFE CYCLE OF HEPATOZOON CANIS (APICOMPLEXA: ADELEORINA: HEPATOZOIDAE) IN THE TICK RHIPICEPHALUS SANGUINEUS AND DOMESTIC DOG (CANIS FAMILIARIS)
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LIFE CYCLE OF HEPATOZOON CANIS (APICOMPLEXA: ADELEORINA: HEPATOZOIDAE) IN THE TICK RHIPICEPHALUS SANGUINEUS AND DOMESTIC DOG (CANIS FAMILIARIS)

机译：ICK虱（Rickicephalus sanguineus）和家犬（CANIS FAMILIARIS）的肝炎犬（APICOMPLEXA：阿德莱里纳州：HEPATOZOIDAE）的生命周期

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摘要

The life cycle of the apicomplexan protozoon Hepatozoon canis in its natural hosts Rhipicephalus sanguineus (tick) and Canis familiaris (domestic dog) was studied in an experimental infection. Tick nymphs were fed on a naturally infected dog, or they were infected by percutaneous injection of blood. Dogs were inoculated by ingestion of adult ticks containing mature oocysts. Gamonts were in syzygy 24 hr after percutaneous injection of ticks. Early oocysts were detected 96 hr after nymph repletion, and mature oocysts in adult ticks were infective to dogs 40 days postmolt. Merogony was detected in dog bone marrow from 13 days postinoculation (PI) and included meronts containing 20–30 micromerozoites, and a second type with 2–4 macromerozoites. Monozoic cysts were observed in the spleen in conjunction with merogony. Gamontogony with infection of leukocytes by micromerozoites occurred from 26 days PI, and gamont parasitemia, which completed the life cycle, was detected 28 days PI. The length of the life cycle from nymphal attachment to parasitemia in dogs was 81 days. Increased body temperatures were evident from 16 to 27 days PI and paralleled the time of intensive bone marrow merogony. Skeletal pain and recumbency were manifested in 2 dogs. This study further elucidates the life cycle of H. canis and provides a sequential morphologic description of H. canis merogony, gamontogony, and sporogony.
机译：在实验性感染中研究了蜂复合体原生动物肝炎犬犬的生命周期，该犬的自然宿主是Rhipicephalus sanguineus（t）和Canisaffaritis（家犬）。 on若虫以自然感染的狗为食，或经皮注射血液感染。通过摄入含有成熟卵囊的成年tick来给狗接种。经皮injection虫注射后24小时，Gamonts处于精神分裂状态。若虫充血96小时后检测到早期卵囊，成年s中成熟的卵囊在蜕皮后40天对狗具有感染性。从接种后第13天（PI）开始在犬骨髓中检测到子代性，其中包括含有20–30个微裂殖子的猫鼬，以及第二种具有2-4个大裂殖子的猫鼬。在脾脏中观察到单生代性囊肿，并伴有减数分裂。幽门螺杆菌感染发生于26天后，即由微小裂殖子感染白细胞的Gamontogony，而在PI的28天检测到完成生命周期的gamont寄生虫病。从若虫附着到寄生虫的犬的生命周期为81天。体温从16天到27天明显升高，与密集的骨髓减退时间平行。两只狗表现出骨骼疼痛和斜卧。这项研究进一步阐明了犬链球菌的生命周期，并提供了犬链球菌的单性，单反性和孢子性的顺序形态描述。

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