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1966年,Robinsonand和Meyer首先报道了鱼类的链球菌病,并从淡水的美鳊(goiden shine,Notemignus crysoleucas)体内分离出一些B组的非溶血链球菌(GBS)。近些年来,随着高密度养殖业的发展,关于链球菌引起的鱼病报道日益增多。属于链球菌科链球菌属的链球菌(Streptococcus spp.)可感染一些海水或淡水鱼如:鲭师、鲻鱼、无条、日本竹荚鱼、条纹鲈、日本鳗鲡、大马哈鱼金眼鲈、虹鳟鱼、鲤鱼、观赏鱼和各种罗非鱼。这类病害发病率较高,死亡率高达30％-50％。并且,由不同种类链球菌引起的疾
In 1966, Robinsonand and Meyer first reported streptococcal disease in fish and isolated some Group B non-hemolytic streptococci (GBS) from the freshwater gohyndium (Notemignus crysoleucas). In recent years, with the development of high-density aquaculture, reports of streptococcal fish diseases have been increasing. Streptococcus spp., Belonging to the genus Streptococcus spp., Can infect some seawater or freshwater fish such as: mackerel, bonito, streakless, Japanese horse mackerel, striped bass, Japanese eel, salmon golden eye Perch, rainbow trout, carp, ornamental fish and various tilapia. The incidence of such diseases is higher, the mortality rate as high as 30% -50%. And, caused by different types of Streptococcus disease