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MahuWévi, the solution for aquaculture that sustainably feeds The MahuWévi is an advanced oxygenation system designed for sustainable fish farming in sub-Saharan Africa, particularly for tilapia. It provides efficient, low-cost oxygen enrichment, ensuring high dissolved oxygen levels through short, regular micro-injections, while operating with minimal energy use. This technology reduces water demand by 50%, lowers nitrogen and phosphorus runoff, and enhances water recycling for crop irrigation, supporting a circular economy. Adaptable to various users, MahuWévi boosts profitability (with an ROI of 30%) and aligns with key SDGs by promoting food security, environmental sustainability, and economic opportunities for youth and women in aquaculture.
Cage Culture: Dive Deep for a Sustainable Leap! Cage Systems for Fish Culturing is a method of aquaculture where fish are grown in floating cages in water bodies like lakes or rivers. The cages protect the fish, allow for controlled feeding, and make it easy to harvest the fish when they're ready. This technology is a cost-effective way to grow fish in a natural, safe, and controlled environment.
Enhance fish farming efficiency with sustainable water systems, reducing resource wastage and ensuring robust fish growth. A recirculatory aquaculture system is a technology where water is recycled after filtration to remove suspended matter. This method is used for higher density culture of fish, allowing for maximum use of limited land and water. Water movement into and out of the tank maintains peak water quality conditions despite dense stocking rates. As water passes into the tank it provides oxygen and when it leaves it carries away waste products. Intensive aquaculture in tanks that operate at high stocking densities is furnished with a flow-through system that discharges water, cleans water, and pumps it back through the system. Tanks with a conventional flow-through systems are simpler in design but require an affordable and reliable source of quality water that can be used with minimal pre-treatment. Recirculatory systems are more complex and costly to install but have higher water use efficiency, higher feed conversion, and more exact disease control.
Aquaculture Innovation: Growing the Future, Nurturing the Waters Tank systems for fish culturing are land-based enclosures used for intensive fish production. They are suitable when there’s limited water or land, and require a complete feed diet. Tanks can be made of various materials and shapes, and are used for rearing species like catfish and tilapia at high densities. Regular sorting is needed to minimize mortality due to cannibalism.
Hapa Nets for Mass Fingerling Hatchery Production The "Hapa Nets for Mass Fingerling Hatchery Production" technology addresses the constraints faced by the aquaculture industry in Sub-Saharan Africa due to inadequate and inconsistent supply of high-quality fingerlings from improved fish breeds. Predation, uneven growth rates, and high mortality in open ponds limit aquaculture expansion. The introduction of "hapa" nets—small enclosures within ponds—serves to protect brooders, hatchlings, and juveniles from predators, ensuring better management of fish stocks. This technology allows for closer monitoring and adjustment of breeding, feeding, and aeration processes, resulting in improved fertilization rates, uniform growth, reduced mortality, and increased production of fry and fingerlings, thereby ensuring more reliable and stable returns on investment for hatcheries.