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Science Information By:
Veterinary Chemicals for use in Fish Egg Disinfection in Canadian Fish Hatchery and Aquaculture Facilities
Fisheries and Oceans Canada (DFO) as the lead federal department for
aquaculture management for Canada is providing the following list of
chemicals that can be administered under the regulatory authority of Health
Canada’s Veterinary Drug Directorate (HC-VDD) for fish egg disinfection in
facilities producing fish for food directly (via aquaculture) and indirectly
(via salmonid enhancement programs). The Canadian Food Inspection Agency (CFIA)
is responsible for monitoring to ensure that fish and fish products meet the
requirements of the Fish Inspection Act and the Food and Drugs Act, and will
take appropriate regulatory action when unapproved or banned substances are
found. Since 1992, a prescription from a licensed veterinarian is required
for the use of many veterinary drugs in hatchery and aquaculture facilities.
The following list and comments related to use for fish egg disinfection has
been provided by licensed fish health veterinarians and complies with the
regulatory requirements of Health Canada and the CFIA. A licensed
veterinarian should be consulted to determine the appropriate treatment and
dosage that is required for any of these treatments.
Note – the use of any other chemical for egg disinfection of food fish is illegal
Parasite-S® or Formalin-R Solution is a formalin-based solution that also contains methanol to prevent the formation of paraformaldehyde, which is toxic to fish. It is used as a bath to control external parasites on the gills, skin and fins of fish and to surface disinfect eggs.
Perox-AidTM (hydrogen peroxide) is an antifungal agent for use on fish eggs. In Canada, it is the only product that is officially approved for use on food fish.
Pyceze® (Bronopol) is an antimicrobial agent that is used as a preservative in health care, food-contact materials and cosmetics as well as an antifungal treatment for salmonid eggs. It is not approved for use in fish hatcheries in Canada and is only available by prescription from a licensed veterinarian through Health Canada’s Emergency Drug Release program. Use of this drug should be discussed with your provincial or private fish health veterinarian
Ovadine® is under review by the VDD for approval as a fish egg disinfectant. Until approval is received, it is available only by prescription from a licensed veterinarian, through Health Canada’s Emergency Drug Release program.
For more information, contact:
National Registry of Aquatic Animal Health
Fisheries and Oceans Canada
200 Kent St
Ottawa, ON K1A 0E9
Nrfd@dfo-mpo.gc.ca
