...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Parasitology >Risk factors associated with Enteromyxum scophthalmi (Myxozoa) infection in cultured turbot, Scophthalmus maximus (L.).
【24h】

Risk factors associated with Enteromyxum scophthalmi (Myxozoa) infection in cultured turbot, Scophthalmus maximus (L.).

机译：与养殖大菱t（Scophthalmus maximus（L.））中的粪肠杆菌（Myomyzoa）感染相关的危险因素。

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

An epidemiological cohort study of Enteromyxum scophthalmi in cultured turbot was performed on a farm in North Western Spain. Four different ongrowing stocks (A, B, C, D) were monitored monthly until market size. Fish from stocks C and D were divided into 2 subgroups, receiving filtered (CF and DF) or unfiltered (CUF and DUF) water. The lack of water filtration was positively associated with infection prevalence, as all fish kept in filtered water remained uninfected. Parasite abundance varied seasonally (P<0.05) in stock B and subgroup CUF. Infection was also associated (P<0.05) with host weight, and the highest prevalences and intensities were detected in 101-200 g and 201-300 g fish. Distribution pattern of E. scophthalmi in subgroups CUF and DUF had a variance higher than the mean, indicating overdispersion. The minimum period necessary for the first detection of the parasite and for the appearance of disease symptoms and mortality, varied depending on the stock and introduction date, although a long pre-patent period was always observed. Several factors, such as host density, parasite recruitment and parasite-induced fish mortality can contribute to the observed distribution pattern. Risk factors found to be associated with E. scophthalmi infection, including water quality and accumulation of infective stages in the culture tanks, should be considered when designing control strategies to prevent the introduction and spread of infective stages in the facilities.
机译：在西班牙西北部的一个农场进行了养殖大菱t中肠霉菌的流行病学队列研究。每月监测四种不同的成长种群（A，B，C，D），直到市场规模。来自种群C和种群D的鱼分为两个亚组，分别接受过滤水（CF和DF）或未过滤水（CUF和DUF）。滤水不足与感染率呈正相关，因为所有过滤水中的鱼都未受到感染。 B种和CUF亚组中的寄生虫丰度随季节变化（P <0.05）。感染也与宿主体重相关（P <0.05），在101-200 g和201-300 g鱼类中检出的最高流行率和强度。 E. scophthalmi在CUF和DUF亚组中的分布模式具有高于均值的方差，表明过度分散。首次发现寄生虫以及出现疾病症状和死亡所需的最短时间视存量和引入日期而定，尽管始终观察到较长的专利期。诸如寄主密度，寄生虫募集和寄生虫诱导的鱼类死亡率等多种因素均可导致观察到的分布格局。在设计控制策略以防止设施中感染阶段的引入和传播时，应考虑与大肠杆菌感染有关的风险因素，包括水质和感染池中感染阶段的积累。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号