Saprolegnia in Fish and Methods of Treatment (Review)

摘要

Saprolegnia, the fungus appears as focal white to brownish cotton-like patches on the surface of the skin and/ or gills. Early lesions consist of pale foci with peripheral areas of erythema and a central zone of lifted scales which frequently becomes ulcerated, expos- ing underlying musculature. Systemic infections are characterized by mycelia masses in the gut and surrounding viscera causing peritonitis with extensive hemor-rhage, necrosis and adhesions. In smaller juvenile fish external signs of bloating caused by gut obstruction may progress to perforation of the abdominal wall. In the present review we focus how to treat Saprolegnia.