Aquafeeds
A study was performed to determine the effects of puerarin, a biologically active ingredient in the roots of kudzu, on stress modulation in farmed salmon.
Health & Welfare
Germany produces a limited amount of carp, trout, mussels and other species. Although traditional pond-based farms continue to operate, the country’s aquaculture production is trending toward land-based systems that feature efficient resource use and reduced environmental impacts.
Health & Welfare
Integrated aquaponic operations can improve water use efficiency because plants participate in nitrogen and phosphorus removal and integration.
Aquafeeds
Alternative lipids have achieved varied success in ensuring adequate growth and fatty acid composition in fillets. The authors evaluated rainbow trout raised on diets containing fish oil or a blend of fish and standard or modified lipids varying in fatty acid composition.
Health & Welfare
Circular tank-based recirculating aquaculture systems can be used to effectively culture rainbow trout and other salmonids in a bio-secure and environmentally friendly manner that imposes a much lower water and wastewater footprint than traditional flow-through culture technologies.
Intelligence
With favorable resources, local sources of eggs, availability of fishmeal and qualified labor, Chile has become the world’s top producer of rainbow trout.
Health & Welfare
Fish farms in Armenia have developed a diversified product base that includes value-added, ready-to-eat foods for export, as well as live and processed fish for domestic markets.
Health & Welfare
Trout farming is a well-established industry that assists in providing services and technology to developing aquaculture sectors in South Africa.
Responsibility
In a study comparing U-shaped plastic culture tanks to concrete raceways in a 31-week grow-out of trout fingerlings showed the plastic tanks offered lower costs, easy modification, transportability and reduced labor for cleaning.
Health & Welfare
A USDA/ARS program is studying semen cryopreservation with rainbow trout to insure that genetic diversity from multiple populations and the genetic legacy of selectively bred populations are protected.
Aquafeeds
In a meta-analysis of 28 nutrition studies, the authors found limited possibilities for ingredient substitution for fishmeal in diets for salmon and trout.
Health & Welfare
In studies, high dissolved carbon dioxide concentrations in culture tank water induced rainbow trout to swim to an area with lower concentrations.
Health & Welfare
Transgenic salmon and trout developed by AquaBounty Technologies are minimally different from other farm-raised fish, but exhibit impressive and inheritable growth rates.