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Symptoms:
Fish afflicted with Cryptobiosis may become thin, lethargic and develop a dark skin pigmentation. Other important symptoms include exophthalmia, splenomegaly, hepatomegaly, general edema and abdominal distention with ascites. Infected fish are highly susceptible to environmental hypoxia, and their metabolism and swimming performance are reduced. This disease has proven quite common among Cichlids and Salmon.
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Treatment:
A variety of treatments are presently being studied. To date, the most successful intervention is an intramuscular injection of isometamidium chloride (1.0 mg/kg). This treatment in clinical trials has had a 100% survival rate (compared with a 100% mortality rate in untreated fish). Nutritional management has also proven to take an active role in its control, as the anorexia contributes to immunodepression.
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Diseases
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