Performance of aquafeed ingredients in extrusion cooking
Aquafeed formulas should perform under an optimal set of processing parameters to achieve desired attributes, maximizing nutritional value and extruder output.
Aquaculture’s input efficiency shines as FIFO ratios improve
The latest Fish In:Fish Out (FIFO) ratios calculated by IFFO – The Marine Ingredients Organisation shows that every kilogram of wild fish utilized in aquafeeds results in a total of 4.55 kilos of farmed fish produced.
What is the best carbon-nitrogen ratio for biofloc systems?
A recent study at the Federal University of Rio Grande in Brazil showed that it is possible to reduce the C:N ratio in biofloc cultures, to decrease the water volume used and the total suspended solids produced, with resulting savings.
Aquaculture feed producer Evergreen wins F3 Challenge
The inaugural F3 Challenge sought to drive innovation in the aquafeed sector and reduce aquaculture's reliance on marine ingredients like fishmeal and fish oil.
Considerations for alternative ingredients in aquafeeds
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.
Global brine shrimp supply a potential bottleneck to aquaculture expansion, part 2
Shrimp larvae do not need artemia, but they need its nutrients. A synthetic artemia can support aquaculture’s increasing role as a responsible provider of food for the world’s growing human population.
Global brine shrimp supply a potential bottleneck to aquaculture expansion, part 1
The brine shrimp artemia is critical for larval fish and shrimp diets. As aquaculture expands, an effective artificial replacement diet for artemia is a major consideration for the industry.
IFFO: Future contributions of marine ingredients in aquafeeds
Fishmeal is still the most nutritious source of protein for aquaculture diets, having a wide range of essential amino acids and a high digestibility, while fish oil is still the only commercially available source of long chain omega-3 for aquaculture diets – both are the foundation of aquafeeds.
F3 takes on a new challenge – fish oil alternatives
Building off the success and excitement of the fish-free aquaculture feed cash-prize contest that concludes this fall, the F3 Challenge has set its sights on a new target: fish oil alternatives.
Testing dietary potassium diformate in Pacific white shrimp
Research from experimental trials demonstrate that dietary potassium diformate improves survival, growth and productivity in Pacific white shrimp (Litopenaeus vannamei), including in the presence of the Gram-negative, pathogenic bacterium V. harveyi.
Largemouth bass responses to supplemental EPA, DHA
This 10-week feeding trial aimed at complementing existing information on largemouth bass responses to oils with supplemental EPA and DHA. Dietary supplementation of these essential fatty acids may be required in feeds for this species.
Canada eagerly looks to camelina oil as a fish oil alternative
Grown worldwide, Camelina sativa is a tiny seed used for human consumption that also has big potential for driving the “green” economy.
Biosecurity protocols needed for shrimp feeds, feeding practices
Shrimp aquafeeds – live, fresh or formulated – should not be an entry point of potential pathogens to the shrimp and/or to their culture systems.
Best practices for optimum shrimp feeds
Producing a consistent shrimp feed pellet requires that all ingredients are processed properly and monitored through proper in-line quality assurance.
Biofloc and clear-water RAS systems: a comparison
This study compared two types of indoor, shrimp culture systems: clear-water RAS and biofloc systems. Clearwater RAS had the edge in water quality, but shrimp in the biofloc treatment had a higher feed conversion ratio.
Crude protein and lipid from biofloc meals from an activated sludge system
A study compared the bioavailability of crude protein and lipid from biofloc meals generated with an activated sludge system using two water sources: wastewater from shrimp experimental culture (BFL-W) and, artificially, using clean seawater (BFL-C).