Topsy Baits

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Marine Bloodworms are the most essential component of the maturation diet for all Penaeid shrimp broodstock. These marine bloodworms (Nireisvirens) are cultured by Topsy Baits in bio-secure, land-based ponds along the European coast of the North Sea. The cold-water temperatures and marine algae diet produce a bloodworm high in essential fatty acids (HUFA’s), necessary for sustained reproduction of shrimp broodstock.

Proaqua sources the bloodworms from Topsy Baits, the largest supplier of farmed live bait in Europe. Click here to visit the Topsy Baits website.

Topsy Baits

  • Frozen SPF Polychaetes
    • Bloodworms

    Frozen SPF Polychaetes

    Marine polychaetes have been proven to be crucial for the sexual maturation and reproduction of fish and shrimp. N.virens contains high levels of digestible protein and are essential for the production of eggs in shrimp. Topsy is located in the temperate zone of Europe, thousands of kilometers away from all known shrimp diseases. Each batch is tested for shrimp pathogens by the University of Arizona. All tests have been negative ever since Topsy started supplying shrimp hatcheries.

    Important features: 

    • Feed 8-10% wet body weight of total broodstock population per day
    • Certified free of all shrimp pathogens (TSV, WSSV, YHV)
    • High biomass content – 3 grams per worm,  850 g. per kilo weight after thawing
    • Protein, 60%; Fat, 14%; Ash, 15%;  Cholesterol, 1.2%
    • Flash frozen in one kilo flatpacks
    • 15 x 1 kg flat packs to a Styrofoam case

  • Dried SPF Polychaetes

    Dried SPF Polychaetes

    Delta Farms dehydrates the Polychaetes at low temperatures to preserve the unique nutrition. The dried Polychaetes can be used in (pre) maturation for shrimp hatcheries as a replacement for live Polychaetes.

    Important features: 

    • Farmed and processed in the Netherlands.
    • Certified SPF by University of Arizona.
    • Dried at temperatures below 30°C/86°F
    • No leakage and reduced water exchange.
    • Can be used in automatic feeders for 24/7 feeding.
    • Easy storage in a climatized room (max. 30°C/86°F).
    • Easy to handle, ready to use.

    Instruction for use:
    Usage of the dried SPF Polychaetes is the same as any other dry feed. No prior treatment needed, no washing or soaking.
    Attention: feed 25% of the weight of the live/frozen Polychaetes