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Production of Freshwater Shrimp Culture in Ohio

Production of Freshwater Shrimp Culture in Ohio. Laura G. Tiu, Aquaculture Specialist OSU South Centers. What are they?. Malaysian Prawns When is a prawn a shrimp? Life Cycle Hatchery (Feb-Mar) Nursery (Apr-May) Growout (June-Sept) Nursed juveniles (60 days old)

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Production of Freshwater Shrimp Culture in Ohio

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  1. Production of Freshwater Shrimp Culture in Ohio Laura G. Tiu, Aquaculture Specialist OSU South Centers

  2. What are they? • Malaysian Prawns • When is a prawn a shrimp? • Life Cycle • Hatchery (Feb-Mar) • Nursery (Apr-May) • Growout (June-Sept) • Nursed juveniles (60 days old) • What is a morphotype??? • Sex determination

  3. History • 1960’s Research in Hawaii • 1970’s Research in Florida • 1980’s Research at Mississippi State University • 1990’s Research at Kentucky State University • 2001 Approved for culture in Ohio • 2002 First research in Ohio • 2003 Latitude Study • 2004 Feed Study • 2005 High density • 2006 One acre pond • 2007 No shrimp at OSU

  4. Where is this happening? • Mississippi • Commodity work • Global seafood • Arkansas, Georgia • Tennessee, Kentucky • Illinois, Indiana • Ohio • Nebraska • tanks • Iowa • heated effluent

  5. What do you need to know • Business planning • Permit (ODNR) • Publication 61(Q&A) • $50.00/year • Pond Construction • Production • Marketing

  6. What to expect (Short Version) • Build pond/get permit/arrange seed/feed • Lime/fertilize • Stock Shrimp (1st week of June) • Feed daily/test water weekly • Aerate 24/7 • Worry daily, because you can’t see them • Develop marketing plan • Harvest in September

  7. Pre-Season (January-February) • Determine Stocking Density • 16,000 – 24,000/acre • 20,000-30,000/acre w/substrate • Order Shrimp • You pick up or delivered • Are they graded? • Nurseries • Ohio (Calala’s Water Haven) • Kentucky, Mississippi, Texas • Order/Arrange Feed • Plan Aeration • Get Permit • Ohio Department of Natural Resources • $50.00/year

  8. Liming (April-May) • Prawns are very sensitive to low and high pH • Test water and soil • You want water alkalinity > 40 mg/L • You want soil pH > 6.5 at sunrise • Use Agricultural Limestone • Add to soil before filling pond • 1,000 – 10,000 lbs/surface acre • Determined by soil quality $77.00

  9. Fertilization $200.00 • Pros • Stimulates natural foods • Faster growth of juveniles • Cons • May increase predators • Creates oxygen demand • Can speed growth of filamentous algae • May contain antibiotics (manure) • May raise pH

  10. Fertilization (2 weeks before stock) • Organic fertilization: plant or animal products • Animal manure • 200 pounds/acre in order to kick start things • 100-200 pounds of horse (or other) manure per week for the first two weeks. • Alfalfa meal. (Soybean meal, Distillers Grains) • 200 pounds/acre/week • Apply in the shallow areas to insure good mixing. • Inorganic fertilization: • 28-0-0 liquid fertilizer (ammonium nitrate) available at most farm supply stores • spray it evenly on the pond with a backpack sprayer • 1-1.5 gallons per acre/per week. • 0-49-0 phosphoric acid • 10 oz./acre/week.  • Take extra precautions as these chemicals can cause burns on eyes and skin.

  11. Stocking Shrimp (June 1-15) • Fill pond • Monitor pH • No more that 0.5 pH units difference • Acclimate shrimp to temperature, pH • Count shrimp • shrimp numbers often underestimated • Count three samples and extrapolate • Graded shrimp will be uniform • Ungraded shrimp will not be uniform

  12. Pond Maintenance (June-Sept) • Aerate 24/7 • Control predators (screen water) • Insects • Bullfrogs • Turtles • Birds • Monitor water quality • Feed • Keep records • Develop a marketing plan

  13. Feeding (June-Sept) • Feed once or twice a day • If once, before sunset • Distribute feed all around pond • Especially edges • Store feed in cool dry place • Do not feed moldy feed • Hold back feed if it’s building up in pond

  14. 16,000 shrimp/acre June = 25 lbs/day July 1-15 = 30 lbs/day July 16-31 = 40 lbs/day Aug 1-15 = 50 lbs/day Aug 16-31 = 60 lbs/day Sept 1-15 = 60 lbs/day Sept 16-30 = 50 lbs/day Total = 5000 lbs feed/acre 25,000 shrimp/acre (with substrate) June = 25 lbs/day July 1-15 = 40 lbs/day July 16-31 = 50 lbs/day Aug 1-15 = 65 lbs/day Aug 16-31 = 75 lbs/day Sept 1-15 = 75 lbs/day Sept 16-30 = 65 lbs/day Total = 6300 lbs feed/acre Feeding (June-Sept)

  15. Sampling (June-Sept) • Can sample with a cast net • Can see red eyes at night with flashlight • Sometimes you will find molts

  16. Harvesting • Time how long it takes pond to drain • Write this down! • Shrimp will follow water • Have baskets and clean aerated water • Have ice • Have scale • Keep notes (pounds, times, etc.) • Get help

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