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January 8, 2014

United States

Mississippi—Four Crops a Year with Bioflocs?


Summary: In this study, a greenhouse-enclosed, lined raceway was used to evaluate a biofloc system equipped with aeration, supplemental oxygen injection and centralized heating.  Shrimp grew to 22.5 grams in 82 days, indicating it may be possible to grow more than four crops of shrimp a year.  The feed conversion ratio was very low at 1.2:1; survival was high; and although the stocking density was fairly low, production of shrimp reached 5.3 kg/m3.


Source: The Global Aquaculture Advocate (The Global Magazine for Farmed Seafood.  The current issue of the Advocate is free, online at GAA’s website).  Editor, Darryl Jory (  Biofloc Trial Results in Fast Shrimp Growth, Low FCR, High Survival.  Drs. Andrew J. Ray (email and Jeffrey M. Lotz (Department of Coastal Sciences, Gulf Coast Research Laboratory, University of Southern Mississippi, 703 East Beach Drive, Ocean Springs, Mississippi 39564, USA). Volume 17, Issue 1, Page 22, January/February 2014.

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