The diseases caused by pathogenic bacteria include epizootic ulcerative syndrome (EUS) tail rot, fin rot, gill rot, hemorrhagic septicemia, scale oedema, furunculosis, bacterial kidney diseases and columnaris disease
(Robert, 1989; Thune et al.
Agricultural Research Service scientists have discovered that adding this clay, called "kaolin," to water significantly improves the survival rate of channel catfish with columnaris disease
, which is caused by the bacterial pathogen Flavobacterium columnare.
EPIZOOTIOLOGY OF COLUMNARIS DISEASE IN AQUACULTURE AND SPORT FISHING PONDS LOCATED WITHIN A BOUNDED HYDROLOGIC SYSTEM HAITHAM H.
However, the epizootiology of columnaris disease in fish ponds has not been extensively studied.
in the fish farms may have been a result of purchase of fingerlings from infected fish farms, poor husbandry practices and environmental factors (Ventura & Grizzle 1987, Ciembor et al.
Flavobacterial Disease: Columnaris Disease
, Cold-water Disease and Bacterial Gill Disease.
Flavobacterium columnare the agent of columnaris disease was first described by Davis in 1922 as Bacillus columnaris and it was isolated by Ordal and Rucker (1944) and called Chondrococcus columnaris.
The columnaris disease is characterized by grey-white discoloration on some parts of the head, around the mouth, gills, fin or body.
This bacteria causes columnaris disease
, which affects many varieties of fish--everything from catfish to goldfish--and thus has a large economic impact.
It causes columnaris disease, sometimes called peduncle disease or tail rot (in aquarium species, cotton-wool mouth), a significant source of economic loss in cultivated catfish, hybrid striped bass, and other fish species.
They have found that fish surviving columnaris disease are resistant or immune to reinfection.
Muscle infection in imported neon tetra, Paracheirodoninnesi Myers: limited occurance of microscporidia and predominance of sever forms of columnaris diseases
caused by an Asian genomovar of Flavobaterium columnare.