Intelligence
Overview of trout farming in Chile
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
Rainbow trout attain good growth, health in tank-based recirculating systems
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.
Health & Welfare
Aquaculture in Armenia
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 in South Africa
Trout farming is a well-established industry that assists in providing services and technology to developing aquaculture sectors in South Africa.
Responsibility
Plastic tanks compare well to concrete in trout trial
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
Semen cryopreservation research seeks higher fertility rates in rainbow trout
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
Meta-analysis examines ingredient substitution for fishmeal in salmon, trout feeds
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
Trouts’ carbon dioxide avoidance behavior used to improve transfer, harvest process
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 improvement: Salmon, trout technology awaits regulatory approval
Transgenic salmon and trout developed by AquaBounty Technologies are minimally different from other farm-raised fish, but exhibit impressive and inheritable growth rates.