Journal of fish pathology (한국어병학회지)

The Korean Society of Fish Pathology (한국어병학회)
권호 표지

In vitro efficacy of formalin, hydrogen peroxide and copper sulfate on the scuticocilliate Uronema marinum at low salinity

  • Jee, Bo Young (National Fisheries Research and Development Institute) ;
  • Jo, Mi Ra (National Fisheries Research and Development Institute) ;
  • Kim, Jin Woo (National Fisheries Research and Development Institute) ;
  • Park, Mi Seon (National Fisheries Research and Development Institute)
  • Published : 2002.12.01
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Abstract

The scuticocilliate, Uronema marinum is a histophagous ciliate and the causative agent of 'scuticociliatosis'in cultured olive flounder Paralichthys olivaceus. In the present study, in vitro efficacy of hydrogen peroxide, formalin and copper sulfate on the scuticocilliate at low salinity was investigated. Each chemical showed synergistic parasiticidal effects with low salinity (salinity in 5 ppt) compared to each chemical alone (salinity in 33 ppt). At low salinity (5‰), ciliates were killed completely within 1.5h by exposure to 50ppm formalin (37% formaldehyde), at 100ppm hydrogen peroxide (30% solution) and at 100ppm copper sulfate (20% solution). The formalin was the most effective chemical against the parasites at low salinity.

Keywords

References

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