Skretting is the global leader in feed and services for closed aquaculture systems and leads the way in the development and supply of feeds designed specifically for these systems. Our extensive knowledge from traditional farming is applied in this relatively new segment, and in 2009, we were the first company in the world to launch commercial RAS feeds. We were also the first to dedicate resources to RAS feed research and have continued to pioneer advancements in this space ever since.
RAS come with their own unique challenges, one of the most critical being consistently maintaining optimum water quality. This requires organic matter (in both particle and dissolved forms) excreted by the species to be efficiently removed by the system. Efficient treatment equipment in RAS is essential, and in addition, fish feed can play an important role in waste and water management, while also affecting growth, FCR, product availability and fish health. It is imperative to only use optimal diets to not just decrease the total waste output, but also improve faecal stability. In other words, with optimal diets, a smaller quantity of faeces will be excreted by the fish, and a higher proportion will be removed by physical filtration.
Achieving a healthy and sustainable production is dependent on knowledge about feed and a comprehensive understanding on fish quality, feeding equipment, sludge handling, and water quality. This is something we have specialised in at Skretting, and we recommend our CAS and RAS clients to use RCX feeds that ensure consistent structural integrity through a certified quality assessment.
RCX is our feed concept for recirculation systems that builds upon our previous market-leading range, RecircReady (RC). RC – an industry first, was introduced to the global aquaculture market back in 2009 and includes modelling capabilities, nutrient recycling solutions and health monitoring in addition to tailored feed solutions. RC was designed to provide farmers with the best possible solution to optimise land-based and other closed-containment productions based on three key principles:
These are achieved by our unique patented ingredients binding faecal matter, hence increasing faecal stability.
Consistency is important for closed systems to maintain the optimum rearing environment. Our RCX certification includes meticulous procedures to ensure consistent physical and nutritional quality. At Skretting, we strive to produce the best possible feeds specifically for recirculation purposes, to ensure these systems always perform at their most efficient capacity.
We have invested significant research resources into RAS feed and have established state-of-the-art RAS-based research facilities around the world, each with a unique focus such as disease prevention, hatchery, and commercial grow-out. This has given us extensive knowledge on improving RAS water and waste management, developing diets that can support optimal system and fish performance, and helping customers succeed in running and expanding their facilities.
There is a lot of diversity in the configurations and operations of closed-containment aquaculture systems. Therefore, it’s essential to provide aquaculture producers with feeds that meet specific requirements. Skretting works closely with fish farmers to ensure that our feeds not only deliver the ideal nutritional content but also have the right shape, size, density, and the appropriate sinking speed for these unique systems.
