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通过显微镜检查对来源于全国各地的37种出口观赏鸟进行了血液原虫调查。共检查血样1144份,结果为:血液原虫的检出率为2.1%,主要是血变原虫和/或疟原虫。感染季节以秋冬两季为主,易感鸟品种主要是白腰文鸟、红喉歌鸲、蓝歌鸲、暗绿绣眼鸟、豆冠、白燕、情侣鹦鹉。  相似文献   

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Veterinarians, in clinical practice, regulatory field work, laboratory diagnosis or research, must work together as a team, each within his area of expertise in order to protect the livestock industry of Canada from exotic diseases. This freedom from many of the serious animal plagues has allowed the development of intensive animal production units with increased vulnerability to disease and in which the impact of disease outbreaks may be more serious.In differential diagnoses one should think not only of the classical exotic diseases such as vesicular diseases, swine fever and rinderpest in today''s world, but one should constantly be on the outlook for any disease outbreak that does not quite fit the picture of the domestic diseases. From this standpoint the large animal practitioner is the very important “first line of defense” since, in all likelihood, he will be the first to see a disease exotic to Canada should that disease gain entry.  相似文献   

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应用害获灭注射剂分别按0.2、0.3、0.4mg/kg剂量经皮下注射给药,进行对猪自然感染寄生虫的驱除效果观察。结果:在给药后7、14d临床检查,0.2mg/kg剂量对猪血虱驱虫效果达中效;0.3、0.4mg/kg剂量对猪血虱的驱虫率均达100.00%,用药后至出栏的几个月内未出现复发。在给药后14d粪检,0.2mg/kg剂量组对猪蛔虫虫卵减少率为89.57%;0.3、0.4mg/kg组虫卵减少率均达100.00%。表明害获灭注射剂0.3、0.4mg/kg剂量驱除猪蛔虫和猪血虱高效安全。  相似文献   

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植物缩合单宁广泛存在于众多植物种群,具有抵御动物摄食的化学防卫功能.近年来植物缩合单宁因其抗寄生虫性受到愈来愈多的关注,相关研究为动物肠胃道寄生虫防控提供了新的途径,它有望成为传统化学驱虫剂的替代物质.本文在总结了迄今研究成果的基础上,将植物缩合单宁的抗寄生虫机制归纳为营养免疫假说和代谢阻断假说,并详细阐述了影响植物缩合单宁抗寄生虫性的各种因素.  相似文献   

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动物防疫监督案件来源有三种:接受移送、监督发现和群众举报。监督发现、接受移送具有主观性,群众举报具有客观性,就群众举报的优点,笔  相似文献   

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A total of 959 faecal samples were obtained from dogs in 12 native communities in Northern Saskatchewan, Central and Northern Alberta and the Northwest Territories. All samples were examined using a flotation technique. Samples from an area of endemic human amoebic infections were also examined by a formol-ether sedimentation method. Eighteen necropsies were performed.

Entamoeba histolytica cysts were recovered from dog faeces at Loon Lake, Saskatchewan.

Toxocara canis had low incidence in Saskatchewan and Central Alberta, and appeared to be almost non-existent further North. Toxascaris leonina was found in all areas surveyed. Canine hookworm infections were plentiful in all areas, the highest incidence being recorded from Northern Alberta and Northwest Territories. Many Taenia (or Echinococcus) infections were found consistently in all areas. Only one infection with Dipylidium caninum was discovered.

Metorchis conjunctus infections were found to be common in the Saskatchewan reserves. Infections with Diphyllobothrium sp. were found in all communities with access to good fishing. One specimen of Dioctophyma renale was recovered at necropsy.

Infections with parasites of no known zoonotic importance such as Trichuris, Alaria and Isospora species were also recorded.

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