相关实验视频

Updated: May 9, 2025

Rabies Necropsy Techniques in Large and Small Animals

Rabies Necropsy Techniques in Large and Small Animals

Published on: July 30, 2019

与sarcocystis spp.相关的患病率和病理学在猛禽在田纳西州,美国

Eliza Baker¹, Lani Bower², Richard Gerhold¹

¹Biomedical and Diagnostic Sciences, University of Tennessee, 2407 River Drive, Room A233, Knoxville, Tennessee 37996, USA.

Journal of wildlife diseases

|May 2, 2025

概括

田纳西州东部的猛禽通常是Sarcocystis物种的宿主,超过三分之一的猛禽显示组织囊. 大多数感染都没有疾病的迹象,这表明掠食者经常作为无症状的携带者.

科学领域:

兽医寄生虫学兽医寄生虫学
鸟类病理学鸟类病理学
野生动物疾病生态学野生动物疾病生态学

背景情况:

猛禽是已知Sarcocystis物种的宿主,充当中间和最终宿主.
以前的研究表明,从致命的脑炎到掠食动物的无症状感染,结果各不相同.
关于美国东部猛禽中 Sarcocystis 发病率的数据有限.

研究的目的:

为了调查田纳西州东部猛禽中 Sarcocystis 组织囊的患病率.
在这些鸟类中识别与 Sarcocystis 感染相关的组织病理学变化.
描述该地区感染猛禽的Sarcocystis物种.

主要方法:

对田纳西州33只猛禽的组织进行了组织病理学检查.
标识sarcocystis spp. 的标识心脏,骨和气管肌肉中的囊.
聚合酶链反应 (PCR) 针对 18S rRNA 基因进行物种识别.
免疫组织化学用于共感染检测.

主要成果:

萨尔科西斯蒂斯 spp. 的一种. 在33% (11/33) 的猛禽中发现了囊,主要是在肌肉组织中.
检测到的 Sarcocystis 囊与没有明显的炎症有关.
在PCR分析中,发现了6只猛禽中的Sarcocystis falcatula和2只猛禽中的Sarcocystis halieti.
一只带有sarcocystis falcatula的光头也表现出脑炎和东方马脑炎病毒.

结论:

田纳西州东部的猛禽经常携带Sarcocystis物种,与其他地方的发现一致.
在这种猛禽群体中,大多数囊炎感染似乎是亚临床的.
同时感染,如 Sarcocystis falcatula 与EEEV,需要进一步调查猛禽的健康状况.

关键词:

萨尔科西斯蒂斯·法尔卡图拉 (Sarcocystis falcatula) 是一个巨瘤.萨尔科囊有性.菌病菌是一种菌体.东部马类脑炎病毒猛禽猛禽是一种猛禽.

更多相关视频

Enhanced Rabies Surveillance Using a Direct Rapid Immunohistochemical Test

Enhanced Rabies Surveillance Using a Direct Rapid Immunohistochemical Test

Published on: April 30, 2019

Procedures for Identifying Infectious Prions After Passage Through the Digestive System of an Avian Species

Procedures for Identifying Infectious Prions After Passage Through the Digestive System of an Avian Species

Published on: November 6, 2013

相关概念视频

Rous Sarcoma Virus (RSV) and Cancer

Rous Sarcoma Virus (RSV) and Cancer

Rous Sarcoma virus or RSV was discovered by F. Peyton Rous in the year 1911 as a filterable transmissible agent that could cause tumors in chickens. He won a Nobel Prize for this discovery in 1966. His experiments clearly demonstrated that some cancers could be caused by infectious agents and led to the discovery of many more cancer-causing viruses in animals as well as humans.
RSV is a retrovirus that contains two copies of a plus-strand RNA genome. Its genome consists of four main open...

Mutation, Gene Flow, and Genetic Drift

Mutation, Gene Flow, and Genetic Drift

In a population that is not at Hardy-Weinberg equilibrium, the frequency of alleles changes over time. Therefore, any deviations from the five conditions of Hardy-Weinberg equilibrium can alter the genetic variation of a given population. Conditions that change the genetic variability of a population include mutations, natural selection, non-random mating, gene flow, and genetic drift (small population size).

Conservation of Declining Populations

Conservation of Declining Populations

Conservation of declining population focuses on ways of detecting, diagnosing, and halting a population decline. The approach uses methods to prevent populations from going extinct.