Design of protocols for the ozone disinfection of fish eggs for eradication of vertically transmitted diseases

Description

Disinfection of fish eggs is an important method of controlling transmissible diseases in an aquaculture facility. Operationally, ozonation has been used successfully against nodavirus transmission in cod kept at the Ocean Sciences Center (Joe Brown Aquaculture Research Building, St John's, NL) since 2004. Nonetheless, this observation needs to be confirmed with appropriate scientific data to ensure that protocols are set-up to maximize control of vertically transmitted diseases and information is needed to ensure that ozone conditions have no long-term effects on larvae. In addition to trials in seawater, this study will test the efficacy of present protocols and investigate potential effect of ozone treatments on larval performance in freshwater (salmon). This project will also include the testing of an ozone treatment/disinfection prototype system on salmon eggs to ensure efficacy of ozonation.

Program Name

Aquaculture Collaborative Research and Development Program (ACRDP)

Year(s)

2010 - 2011

Ecoregion(s)

Atlantic: Newfoundland, Labrador Shelves

Principal Investigator(s)

Dounia Hamoutene
Email: Dounia.Hamoutene@dfo-mpo.gc.ca