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| Prevention knowledge of freshwater fish disease |
Fish Disease Virus
Grass Carp Hemorrhage
Grass carp bleeding from the disease virus (reovirus) cause. Main harm grass, herring species, in late May to the end of October is epidemic season, the high mortality of the disease, up more than 70 percent. Fish ponds general incidence of low dissolved oxygen, ammonia, nitrite and organic oxygen consumption high.
[Symptoms] Bingyu main symptom is the organ organizations have different levels of congestion, hemorrhage. Fish Anhei subcutaneous muscle congestion, hemorrhage; Bingyu the mouth, on the mandible, the first top orbit around gill cover, gills and the base of congestive Qitiao; congestive intestinal wall, but still has bombs toughness (as distinct from enteritis, colitis patients also intestinal abscess bar, has a toughness nil).
[Disease Control] invoke formal Yuanchongchang seedlings; to the species of grass carp Hemorrhage injection of inactivated vaccine using rhubarb, baicalin, Cortex Phellodendri (5:2:3) or Jianshi crush internal control, per 100 kg of fish using drugs 0.5 -1 kg per 50 kg of fish, with decocting Chinese medicine (Agrimony 250 g, 100 g Zizhu grass, Daqingye 250 g, 100 g Lygodiaceae, rhubarb and Banlangen the 400-500 grams) Oral 4 -- five days; use of acridine yellow Oral drug ingredients, a certain degree of clinical effect. |
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