Intensive aquaculture relies on stocking ponds heavily and using both mechanical aeration and feed addition to produce large amounts of seafood. While increasing yields exponentially over natural ponds, this process has problems with off-flavors, diseases, and low feed conversion that can be traced back to buildup of pollutants and pathogenic microbes.
While I have long focused on treating wastewater, Aster Bio was asked to investigate if microbes could improve productivity in shrimp farms and reduce off-flavors in catfish farms. We looked at the wastes causing the pollution including ammonia/nitrite buildup. Additionally, we considered how beneficial microbes could enhance feed conversion and competitively exclude pathogenic microbes. After studying the problems and surveying ponds, we tested multiple formulations to see if adding microbes could changes pond ecology and enhance yields. The results are below:
Erik Rumbaugh has been involved in biological waste treatment for over 20 years. He has worked with industrial and municipal wastewater facilities to ensure optimal performance of their treatment systems. He is a founder of Aster Bio (www.asterbio.com) specializing in biological waste treatment.
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