aquatic animal vaccines - world organisation for animal health · 1/3/2020 · aquatic animal...
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Aquatic animal vaccines
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Nao Nakajima D.V.M., Ph.D.
Ministry of Agriculture, Forestry and Fisheries of JapanNational Veterinary Assay Laboratory
OIE-Collaborating center on diagnosis and control of animal diseases and related veterinary products assessment in Asia
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Increasing role of aquaculture
Capture Aquaculture
2016 2030
FAO The state of world fisheries and aquaculture 2018
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http://www.fao.org/fishery/naso-maps/national-aquaculture-production-1950-2015/all-carto/en/ 3
Asia pacific region is responsible for the world’s aquaculture production
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Importance of Aquatic Animal Health
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Tackling AMRKeep Aquatic animals healthy
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Aquatic vaccines✓History
✓Impact for fish production
✓Vaccination method
✓Considerations
✓Regulations
✓Challenges
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History of Aquatic Vaccines ⚫1986-1990
Immersion vaccines for Vibrio salmonicida (Norway, 1986)
Immersion vaccines for Vibrio anguillarum (Japan, 1988)
Immersion/Injection vaccines for Aeromonas salmonicida (Norway, 1989)
⚫1990’s
Development of many types of injection vaccines
-Combined vaccines, Adjuvant vaccines
⚫2000’s ~
DNA vaccines for Infectious Hematopoietic Necrosis Virus (Canada, 2005)
DNA vaccines for Infectious Pancreatic Necrosis Virus (Norway, 2018)
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•Improving productivity
•Cost down
•Decreasing antibiotic usage
Good for
Eco, Food safety ,Public Health
Impact to the fish production
FY 2013 Trend in Fisheries White Paper on Fisheries JMAFF
Shift to Prevention from Treatment
Improve the Market Value
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Vaccination methods
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Injection Immersion Oral
Treatment tank
Mixed with feeds
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Process of Injection vaccine
Number and body weight of vaccinated fish are monitored
Automatic injection devices
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Features of vaccination methodsInjection Immersion Oral
Efficacy +++ + +
Application + ++ +++
User safety + +++ +++
Stress for fish +++ + -
Labor costs +++ + +
Amount of Vaccine + +++ +++
Accuracy of administration +++ + -
Handling skill +++ + -
Comments Most common methods Easiest methods
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Yellowtail: Average Wholesale price :13$/kg
(17$/Kg for Export)
80$/fish (Aqua cultured)250$/fish (Wild caught)
Matured size 4 kg >(2 years >)
Vaccine cost0.3-0.6$/head
Seabream:Average Wholesale price :15$/kg
Matured size 800 kg >(20 months >)
25$/fish (Aqua cultured)
Flat fish:Average Wholesale price :22$/kg
Matured size 800 kg >(2years >)
18$/fish (Wild caught)
Cost Benefit
Most of Vaccines are targeting valuable fish(Most of Aqua-cultured fish are valuable one )
Dec 30, 2019 at the fish market
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Considerations1. To know the disease
-What kind of diseases do you want to control?
-When is the season of outbreak?
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1st year√
2nd year
Lactococcus
2. Vaccination should be carried out for healthy fish
- Good nutrition
- Good health condition
Photobacterium
Lactococcus
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Considerations3. Based on Label
-Target fish*, Condition of water temperature, Fish size, Dose, Administration route
EX. Yellowtail , 18 to 22 degree, 20 to 1000g , 0.1ml , i.p.
*Target fish :Salmon, Tilapia, Pangasius, Bass, Sea-Bream, Flat fish, Grouper, Yellowtail etc.
4. Based on Instruction
-Food should be withheld for 1 day prior to vaccination.
-Do not move fish for 5-6days before and after vaccination
-Withdraw period etc.
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Distribution and use of Aquatic vaccines
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1: Application for Vaccine use
2: Issue of prescription
3: Order
4: Shipment to Fish-farm
5: Feedback the usage data
Consultation with the specialist
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Quality control •GMP based manufacture
•Inspection for final products by the national authority
-National assay (Efficacy / Safety tests)
-Reviewing of Summary lot protocol (Paper review)
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Safety tests / Efficacy tests
Quarantine period Safety test Efficacy test
• Artificial challenge test
• Immunological test
Vaccination
• Adverse effect
• Local reaction
Grading score for local reactions
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Challenges • Involvement of specialist, Vets or other • Development of effective vaccines for local fish in your country
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Thank you for your attention
Special thanks for
Kagoshima Fisheries Technology and Development Center
Azuma-cho Fishery Cooperative in Kagoshima
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