Fish Farming Technology
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FISH FARMING TECHNOLOGY THE MODERN FISH FARM Modern fish farming is all about monitoring, control and digitalisation - Feed for Atlantic salmon in RAS: Why consider a dedicated RAS feed? - Trace mineral nutrition in fish August 2020 and shrimp - New technologies for fine aqua feed production See our archive and language editions on - Monaco Blue Initiative goes your mobile! International Aquafeed - Volume 23 Issue 08 virtual - Expert Topic - Predator Series Cormorant Proud supporter of Aquaculture without Frontiers UK CIO AUGUst 2020 www.aquafeed.co.uk Balanced by nature Shrimp farming without the guesswork: increase stocking Ecobiol® density and increase pathogen risk, decrease stocks and decrease profits – finding the right balance in shrimp production can be a guessing game. Evonik’s probiotic solution Ecobiol® helps for Aquaculture restore the balance naturally by disrupting unwanted bacteria proliferation and supporting healthy intestinal microbiota. Your benefit: sustainable and profitable shrimp farming without relying on antibiotics. [email protected] www.evonik.com/animal-nutrition Aquaculture remains the fastest growingWELCOME food Other current research is exploring the use of sector and, despite COVID-19, the UK salmon fermented products as a fish meal replacement. industry is expected to continue to rapidly Fermentation is an environmentally friendly increase. In nearly every issue of International process that consumes less energy and Aquafeed we publish feature stories on new produces less waste. The list of ingredients and innovative sources of protein for fish feed, that can be fermented to produce aqua feeds in the effort to create a sustainable industry. is constantly growing and include ingredients There are soybean-based aqua feeds, insect oil such as fermented soy meal, shrimp head meal, and insect protein-based aqua feeds and, last seaweeds, sesame seed meal, linseed meal, month, we featured a krill-based aquafeed. Now black gram seed meal and grass pea meal. news headlines are talking about a sustainable A new study shows that a type of single- protein source that uses microbes to convert celled protein contained in bacteria could carbon dioxide from a power station into Vaughn Entwistle be used to replace wild-caught fish and high-value proteins. As another benefit, this Managing Editor, International Aquafeed agricultural products as an ingredient in process will do so with minimal water and no salmon feed. All of these protein alternatives requirement to use arable land. pose unique advantages and disadvantages in their efficacy and, of course, there are many more requirements A similar project is being researched by US company, which is to make a commercially successful fish feed, such as taking into currently developing a scalable and deployable carbon-negative consideration palatability and feed conversion ratio (FCR). bioreactor system to capture the CO2 produced at a power plant. It seems unlikely that one protein source will replace all others and, The algae could then be processed into valuable products, including no doubt, some rationalisation will gradually reduce the numbers to carotenoids and nutritional supplements, both for human consumption a limited group of contenders. But it’s incredibly encouraging to see and for sectors such as the aquafeed industry. this explosion of creativity from the fish feed industry. Aquaculture Without Frontiers (AwF) is a Charitable Incorporated Organisation (CIO) that promotes and supports responsible and sustainable aquaculture and the alleviation of poverty by improving livelihoods in developing countries. Registered charity No. 1165727 www.aquaculturewithoutfrontiers.org.uk ISSUE HIGHLIGHTS FISH FARMING TECHNOLOGY Dedicated RAS feed: Feed for Atlantic salmon in RAS: Why Digitalisation: The modern fish farm consider a dedicated RAS feed? - page 42 - page 20 SPECIES Aquaculture round-up Monaco Blue: The 11th edition of the Monaco Blue EXPERT TOPIC - PREDATOR SERIES- Initiative goes virtual Cormorant - page 32 - page 52 www.aquafeed.co.uk NUTRITION & HEALTH We live in interesting times and a control or reference diet or even a working from home has given us series of basal diets with various test many opportunities to reflect on ingredient substitutions. To this basal how we might undertake tasks in the diet we could then supplement with future. Certainly, I have had more different feed additives and functional meetings than I could have imagined bioactive ingredients that could even with the use of Skype, Zoom and include enzymes or prebiotics and other platforms. My mobile phone probiotics. and emails have never stopped, and This is good sensible practice and it’s been quite hectic indeed over this Professor Simon Davies studies could even run in parallel and Nutrition Editor, International Aquafeed long lockdown period across the globe share the control diets in some cases. and kept me very busy on projects It allows for better comparisons and and academic matters. Even Her can integrate separate trials into a Majesty Queen Elizabeth II has mastered this incredible theme study for the use of a product, e.g. protein concentrate technology. or perhaps DDG with or without enzyme supplementation. It can give benefits such as reducing the number of fish used in Anyway, commerce and the business of aqua feed goes on experiments, thus meeting the 3R’s (Reduction, Refinement with some excellent webinars of late covering exciting topics & Replacement of animals) required by numerous regulatory that we are all familiar with by now. The march to sustainable authorities. new ingredients is yielding many novel ideas and recently This can be seen in publications that show a commonality I have been involved with work on bacterial SCP sources. in the materials and methods section for the basal feed These are usually produced by growing specific strains on compositions used in a study but where the outcomes of waste stream organic substrates under controlled fermentation sequential trials involving different feed additives tested on conditions that generate high microbial biomass. The resulting fish would yield distinctly separate findings in respective peer- dried product is very high in protein (> 80%) and of a well- reviewed papers. balanced and digestible amino acid profile. Indeed, in the field of fish nutrition and aqua feed science, The material can equate to fishmeal and soybean and can it is time for a new online journal to compete with the main substitute to a high level in feeds for many different fish frontrunners. This is a priority goal now for the 2020’s and the species. It is imperative that we can utilise a uniform and necessary infrastructure and platforms are in place for us to stable ingredient that is available in bulk and at a reasonable begin an exciting new development in due course. price to compete successfully with traditional commodities. In the field of fish nutrition, I see new developments for RAS- One of the major problems is that their scale-up into providing optimised feed for fish reared in closed systems and bespoke a regular source for aqua feed is not sufficient to meet the diets for different fish is being produced by Aller Aqua group rising demands of the fish feed manufacturer and this can in Denmark. On the bacterial SCP front, Calysta is launching lead to disappointment. I have frequently seen the efforts of a 10,000-tonne production facility in China in a joint-venture several start-up companies being constrained by a real failure between Adisseo to produce its premier FeedKind protein that to adequately research the market for ingredients, especially will make a very significant impact to the US $28 billion Asian those high in protein. These have often been the case for aqua feed market by 2022. different types of algae and the insect meal developments In the sustainability agenda, it is indeed welcoming news that range from small local enterprises to larger operations that Mowi is dedicated to the use of only deforestation-free that are good examples. The latter may indeed rise to meet soybean sources in their aqua feeds from 2021. Mowi’s three these challenges as aquaculture expands in volume with more major traceable routes of non-GM ProTerra certified soy investment. protein concentrate are Caramuru, Imcopa and CJ Selecta. The whole question of sustainability is now more important This will enhance transparency of the supply chain and help to than ever, so I welcome these important initiatives from many preserve Brazilian rainforests in future. companies with an active interest in meeting this ‘protein gap’. I trust, despite the restrictions, you are all wisely using your In fish nutrition, work one has to consider the planning of time and keeping the industry buoyant and advancing. It’s experiments with fish often on the basis of short- or long- good to have ‘thinking’ time. Please sit back, relax and enjoy term feeding trials. It’s very common to design a basal diet as this August edition. 4 | August 2020 - International Aquafeed FISH FARMING TECHNOLOGY Sparos is a science and technology related services for fish farmers and company that has been developing new aquafeed formulators: a tool to benchmark products and nutritional solutions for aquafeeds and study the effects of feed the aquaculture market since 2008. composition changes on fish production Sparos has been providing contract performance - FeedneticsTM; and a tool research services to industrial customers to create customised feeding tables for to support the development of various the farm’s target growth and feed - FiT. feed additives, novel feed ingredients Both tools are calibrated and validated for and feeds for fish and shrimp. Using the Ana Nobre Gilthead seabream, European seabass and scientific knowledge of fish nutrition and Product Manager/Researcher, Sparos Lda Rainbow trout. Upon client request and expertise of new ingredients and feed pending data availability, Sparos can create additives, Sparos today also markets its custom calibrations for other species and/ nutritional tools to evaluate aquafeeds.