Tag fatty acids

Fish-free diets are suitable for shrimp production and can generate high-quality product. Consumer preferences for the flavor of shrimp and texture attributes need exploration. 

Study evaluated production performance and tissue composition of juvenile Florida pompano fed diets containing fish oil or 25:75 blends of fish oil and various other lipid sources. 

A key to expanding aquaculture is finding alternative sources of proteins and oils. Supplementing or replacing fish oil in aquaculture feeds with alternative lipid sources – oils seeds, microalgae, insects and others – appears possible as long as essential fatty acid (EFA) requirements are satisfied. 

The Japanese eel (Anguilla japonica) is cultured in ponds in Japan, China, the Republic of Korea and other countries. Ongoing research is addressing knowledge gaps in the domestication, controlled breeding and nutritional requirements of the species. 

Research shows farmed fish fed diets heavy on vegetable oils have higher amounts of omega-6s and lower amounts of omega-3s, compared to fish fed diets heavy on fish oil. We take a deep dive into the relationship between the two fatty acids. 

In the second part of our interview with the associate head of research at the School of Life and Environmental Sciences at Deakin University (Australia) he discusses the various alternative sources of omega-3 fatty acids coming on to the market and why research is crucial to advancing aquaculture. 

In a study of juvenile cobia diets, results suggested that lipid sources with high levels of saturated fatty acids and low polyunsaturated fatty acids can replace a large percentage of fish oil in feeds if they are amended with DHA. 

In a trial, a novel dietary vegetable oil blend was able to totally replace fish oil in tilapia diets without negatively impacting growth performance. 

A study showed that lipid source and DHA and EPA levels in feeds can influence the growth performance and tail fatty acid profiles of L. vannamei farmed under hypersaline conditions. 

By feeding different oils at different points in a fish's life cycle, such as finishing feeds, farmers can tailor the composition of fillets to maximize value and minimize fish oil use. 

Recent research by the authors evaluated strategies to reduce fishmeal and fish oil in diets for red drum by substituting terrestrial proteins and lipids while maintaining beneficial fatty acids with DHA supplements derived from marine algae. 

Studies have identified changes in the quality parameters of farmed Atlantic salmon and wild salmon that reflect changes in the animals’ life cycles, diets and environments. 

Dietary lipids are necessary for the growth, survival and metabolic functions. Triglycerides are the main form in which humans ingest and accumulate fat. 

University of Stirling study determines the fatty acid profiles for Oreochromis niloticus tilapia and hybrid red tilapia in Thailand.