Media Releases and Opportunities
» Go to news mainMedia opportunity: Dalhousie University researcher finds that farmed fish do well on diet of natural marine oil, providing a more sustainable food source for aquaculture operations
A researcher at Dalhousie University has found that farmed salmon and trout do just as well, if not better, on a diet of feed containing a locally produced marine oil compared to one that uses oil from less sustainable wild-caught fish.
Stefanie Colombo, an assistant professor in Dal’s Department of Animal Science and Aquaculture and a Canada Research Chair, tested oil from a marine algae in the diets of farmed rainbow trout and Atlantic salmon.
The researchers did several feeding trials using varying amounts of the microalgae oil, including one that completely replaced the fish oil with the new marine microalgae oil. They found that both trout and salmon grew as well or better than fish that were fed oil from the wild fish. The salmon and trout also stored more DHA in their fillets, which is important for consumers.
The findings, outlined in two separate studies, are significant for the lucrative aquaculture industry, which now has a more sustainable option for supplying omega-3s in their fish feeds. One of the challenges for the business is finding feed that doesn’t rely too heavily on wild-caught fish for the oil, which is a critical part of the feed. The research also highlights the synergies in Atlantic Canada, regarding the production of local, sustainable materials for the growing aquaculture industry.
Dr. Colombo is available to discuss the research and how this locally produced oil has proven to be an effective source of DHA in the diets of rainbow trout and salmon.
Please see the studies here: MDPI and Aquaculture. For photos, please visit this site.
- 30 -
Media contact:
Alison Auld
Senior Research Reporter
Communications, Marketing and Creative Services
Dalhousie University
Cell: 1-902-220-0491
Email: alison.auld@dal.ca
Recent News
- Media release: Nova Scotia pharmacists among Canada’s first to prescribe HIV prevention drug with help from Dalhousie pilot study
- Media opportunity: What do you need to make a hit song? Math, according to a Dalhousie University mathematician who created a pop song using fractals, the cantor set and all things mathy
- Media opportunity: Uncovering the link between meltwater and groundwater in mountain regions is a priority for sustainable water management: international research paper
- Media opportunity: Fish biomass faces steep declines by end of century under high‑emissions scenario: FAO report by Dalhousie University, international scientists
- Media Release: Two Dalhousie students selected as McCall MacBain International Fellows
- Media release: Barriers to care ‑ research reveals the experiences of transgender and gender‑diverse people seeking health care
- Media opportunity: Being involved in extracurricular activities really does matter when it comes to 'mattering': Dalhousie University research
- Media opportunity: Podcast by Dalhousie researcher and Halifax photographer looks at barriers to Nova Scotia's coastline, decreasing access to waterfronts and problems with litter, marine debris in public coastal areas
Comments
comments powered by Disqus