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(三) 病毒性鱼病的防治 草鱼出血病 症状:患这种病的鱼,主要症状是体内、外各个器官和组织表现斑点状或块状充血,各种鳍条的基部、鳃、鳃盖、眼眶、口腔、下颌等表皮组织,不用解剖就可以看到充血现象;脑膜腔、肌肉、肠道、胆囊、肝、脾、肾等器官,也往往出现充血。6～10厘米的草鱼鱼种,在温度适宜的情况下,发病时症状最典型,严重的病鱼,全身因充血而呈红色。但在水温偏低的情况下,肌肉充血现象往往不甚明
(C) of the prevention and treatment of viral fish disease Grass carp bleeding symptoms: suffering from this disease of fish, the main symptoms of the body and various organs and tissues showed spot-like or massive congestion, a variety of fin base, gill, , Eyes, mouth, jaw and other epidermal tissue, without dissection can see the congestion phenomenon; meninges, muscles, gut, gallbladder, liver, spleen, kidney and other organs, but also often congestion. 6 ~ 10 cm of grass carp fish species, in the case of appropriate temperature, the onset of the symptoms of the most typical, serious sick fish, systemic redness due to congestion. However, in the case of low water temperatures, muscle congestion is often not clear