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Growing RIVAN92 frogs in France: the pioneer farm
1. ADMIN 35 years gestation
2. ZOOTEC from tadpole to frog legs
3. ECONOMY delicate
4. FUTURE research needed
by Agnès JOLY, PhD, scientific director
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A 30 years process …• Tradition in France: Wild collection of frogs in the villages
• 1980: ban for wild collection
• 1980s: INRA starts investigating
• 1992: Pelophylax ridibundus RIVAN92 is born
• 1999: Patrice François initiates the project for raniculture
• …
2ADMINISTRATION
• 2006: RIVAN92 listed on the domestic list in France
• …
• 2011: first froglegs sold from his farm in SE France
• 2016: 2 more farms open in France
• 2017: GdF will open a second farm in Normandy
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Legal frame for raniculture in France
• « Protected and quasi invasive specie »
• Forbidden to sell alive frogs
• Forbidden to take from or release in the wild
• Make sure no escape from the farm
• In Europe, only France so far, can farm frogs
• Same legal rules as aquaculture (avril 2008)
• 20 tons limit for ICPE
• Hygiene package and Codex Alimentarius for processing
3ADMINISTRATION
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4ZOOTEC
4 months aquatic farming - plain water
4
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5ZOOTEC A critical stage: metamorphosis
- escaping from water
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6ZOOTEC
4 to 6 months semi aquatic farming
6
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7ZOOTEC
Other farming techniques
7
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ZOOTEC
… to the plate : today’ situation
• 2000 m² farm in a former greenhouse
• 400 000 € investment without land
• 3 to 4 tons yearly =/=> 20 tons
• 40 to 60% yield
• Selling price round 25 €/kg
8
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• 10 000 tons French market in 1970 …. 4 000 tons now
• 99% import: wild from Turkeyand Indonesia, farmed from Vietnam
• Strong demand for Made in France
• High nutritional quality meat
• => GO FOR IT!
• Silver market so far
• Mostly national
• High capital investment
• High administrative burden
• Yet little automation
• Yet little knowledge
• Few examples
• => it is aquaculture !! emerging
9
DELICATE ECONOMICAL BALANCE
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Grenouille de France is very open for R&D projects
• Possible pathologies, prevention/treatment
• Water quality
• Reproduction synchronization and planning
• Tadpoles feeding
• Metamorphose management
• Growth: tanks shape, density, temperature, grading, feed type
• Processing automation
• 100% valorization: skin, fat, etc
10WIDE NEED FOR RESEARCH