亚博体彩APP_{实时热点} opebet体育地址_{实时热点} 博竞技入口_{实时热点} 海南体彩_{实时热点} 凤凰国际登录_{实时热点} 博电竞软件_{实时热点} 齐发老虎机娱乐_{实时热点} 皇冠体育投注_{实时热点} 万人炸金花app_{实时热点} 竞彩258登录_{实时热点} 经典牛牛app_{实时热点} 博竞技入口_{实时热点} 大满贯的水果机_{实时热点} 十博10betapp_{实时热点} 博赢开户_{实时热点} 皇冠体育投注_{实时热点} 美好棋牌网址_{实时热点} 黑白直播体育下载_{实时热点} 开火车大满贯技巧_{实时热点}

Spring Viraemia of Carp

What Is It?

Spring viraemia of carp (SVC) is an infectious viral disease of carp (Cyprinus carpio) and other cyprinid fish species. The common carp is the principal host, but clinical disease has also been reported to occur in koi carp, grass carp, silver carp, crucian carp, goldfish, tench and sheatfish.

Where and When Might it Occur?

SVC was initially diagnosed in Yugoslavia (Fijan et al. 1971). Since then, it has been identified in other European countries, Russia, Brazil, the Middle East, China, and North America.

LOLS10在线直播下注SVC is mainly present in countries which experience low water temperatures.

The virus is often transmitted by the virus remaining in the feces of infected fish and from blood-sucking parasites.

LOLS10在线直播下注High mortality can occur in all age groups of fish at water temperatures between 10 and 17C, especially in spring. However, fry can be affected at temperatures as high as 23C.


SVC virus multiplies in endothelial cells in blood capillaries, haematopoietic tissue and cells of the nephron. Clinical characteristics of affected fish are impairment to the salt water balance, which occurs in association with oedema and haemorrhage.

LOLS10在线直播下注The causative agent of SVC is a rhabdovirus. It can be isolated in cell culture and identification is achieved by ELISA, immunofluorescence and virus neutralisation test.


The virus can be spread by water and by movement of live infected fish. Controls are based on prevention of movement of fish and equipment from infected farms to uninfected locations, and by appropriate hygiene measures.

SVC has been designated a notifiable disease by the Office International des Epizooties (OIE). The disease is also notifiable under UK legislation and is a List III disease under European Directive 91/67/EEC.

Fish which survive outbreaks of SVC can develop strong protective immunity against the disease. Currently there are no licensed vaccines against SVC.

Source: Fisheries Research Services

Crown copyright 2007

LOLS10在线直播下注FRS is an agency of the Scottish Executive