Fish processors can make a buck by making use of fish parts they normally throw away, says Kelly Hawboldt, a Memorial University of Newfoundland professor specializing in process engineering. She and her team at the Ocean Frontier Institute are looking at turning waste from all kinds of fish — finfish and shellfish, both farmed and wild — into valuable products such as fuel, road salt and even nail polish. Hawboldt and her team can extract high-quality oil from finfish guts for nutraceutical use and then use the waste from that process — a high-protein fish pulp — as fish meal or animal feed.

A primary ingredient used in catfish feeds in Vietnam is cassava. However, the current production level of cassava is not enough to supply the growing demand. According to a study sponsored by the USGC, sorghum is one potential ingredient to substitute for cassava as a source of starch for feeding Pangasius in Vietnam. Sorghum contains a reasonable amount of protein (10%), higher than cassava, and also contains higher amino acids, similar to corn but relatively higher in tryptophan and threonine.

SouthFresh Aquaculture of Alabama has attained Best Aquaculture Practices (BAP) certification. SouthFresh is one of the few catfish companies in the United States that owns 100 percent of its feed mill. It’s the first U.S. catfish company to earn the distinction of a BAP-certified feed manufacturer. \"Manufacturing a sustainably produced nutritious catfish feed directly affects our end product and is essential in our overall sustainability plan. Controlling the diet of our catfish is a high priority, and SouthFresh’s proprietary enhanced feed blend has proven to show improvement in the health of the fish and feed efficiency.\"

The fodder crop Napier grass is providing new opportunities for freshwater fish farmers, who say it is an easy to grow, low-cost alternative to commercial fish meal. Chiang Rai Fisheries Provincial Office pioneered developing the new fish food, which consists of chopped high-protein Napier grass, rice husk and concentrated feed in the ratio of 6:4:1. The cost for farmers has plummeted from 26 baht to only 6 baht a kilogramme.

The ALGARED+ project is part of the Cross-Border cooperation Programme Spain-Portugal (POCTEP) and will be implemented by a consortium comprising 9 institutions, including universities, research centres, public and private enterprises in the areas of aquaculture, biomedicine and the production of microalgae in the regions of the Algarve and Alentejo in Portugal, and Andalusia in Spain.

The new CGIAR Research Program on Fish Agrifood Systems (FISH) was recently launched at the World Aquaculture 2017 conference in Cape Town. FISH aims to assist 3.5 million people to exit poverty and reducing the number of people suffering from deficiencies in essential micronutrients by 2.4 million. FISH will focus on the three interlinked challenges of sustainable aquaculture, small-scale fisheries, and enhancing the contribution of fish to nutrition and health of the poor in priority geographies of Africa and Asia-Pacific. \"The sustainable development of aquaculture development presents an opportunity to contribute to food security, job creation and the fight against poverty.”

The nutritional value of farmed salmon could be boosted by a new generation of fish feed created from algae by a young Scots scientist. Douglas Martin, 26, has developed a sustainable way of increasing the Omega content of the fish. He has created a nutrient rich microalgae which is grown in giant stainless steel tanks using waste water from the whisky industry.

Deputy Prime Minister and Foreign Minister Krishna Bahadur Mahara laid the foundation stone for construction of a community fish feed industry in Ratnanagar of Chitwan district. The construction of the industry will be completed within a year. The industry will be equipped with the capability of producing 5 tons of feed per hour.

Traditionally, a sizable amount of fish protein and all Omega-3 fatty acid fish oils are ultimately sourced from leftover aquaculture byproducts and wild menhaden catch, which are processed into feed pellets and fish oil products. (Menhaden is a type of fish.) The latter industry is heavily regulated, with catch volumes set for specific years, which has forced feed producers to get creative with their supply chains over the years. However, a fish-eat-fish world can only be sustainable for so long. That\'s why these companies are looking to protein and Omega-3 sources that aren\'t connected to fisheries and aquaculture.

Thailand-based Charoen Pokphand Foods\' Europe branch has agreed to acquire Germany-based Paulsen Food Service, the company said in a release on Friday. This gives one of the world\'s largest shrimp farmers a 95% stake in the company, a German meat and prepared foods distributor, which sells to high-end foodservice customers.

The Marine Stewardship Council (MSC) announced that the U.S. Atlantic menhaden and U.S. Gulf of Mexico menhaden fisheries have entered the evaluation process in order to acquire the respected blue ecolabel for sustainable fishing. The assessments are being conducted by third-party independent auditors SAI Global at the request of Omega Protein. Between the Atlantic and Gulf Coasts, the U.S. menhaden fishery is the second largest in the country by weight, trailing only Alaska pollock.

As of July 1,  processed proteins derived from insects are authorized for use in feed for farmed fish in the EU. FEFAC has released a statement welcoming the authorization. \"Within the current legal framework, the feeding of insects destined to be used as fish feed needs to comply with the same requirements as any conventionally farmed animal, meaning in particular that they may not be fed with e.g. catering waste or livestock manure. FEFAC believes that this measure is in line with the present state of scientific knowledge and should facilitate the public & market acceptance of insect proteins used as feed.\"

Fish and shellfish farming contributes £620 million to the national economy of Scotland every year, according to new research. The industry now supports more than 12,000 jobs and Scottish aquaculture production has increased by a third in the ten years to 2015, from 142,000 to 188,000 tonnes, according to the Scottish Government and Highlands and Islands Enterprise (HIE) commissioned study. “These figures are good news for Scottish aquaculture and show the significant social contributions the industry makes to remote rural, island and coastal areas by supporting high-skilled jobs, diversifying and protecting communities.\"

Entomo Farm, together with french aquaculture feed laboratory IctyoPharma, have released results of their 3-month study to evaluate the efficacy of graded incorporation levels of insect meal (Tenebrio molitor meal) on the growth performance, body composition and nutrient retention in Nile tilapia juveniles. At the end of the 61 days trial, fish fed 10% incorporation of insect meal showed a significantly higher final body weight and specific growth rate than those fed all other diets. In the best performing treatment, fishes showed a 9-fold increase of their initial body weight.

A by-product of poultry production offers promise as a stress-mitigating ingredient for farmed Atlantic salmon, according to a reseacher at the University of Wisconsin at Madison. “The preen gland produces an interesting oil, an interesting wax, but the research into that oil has been underexplored.”

Soybeans offer some advantages as a fish farm feed, but consumer resistance to genetically modified crops could dictate which type of beans are used. Some consumers, particularly in Europe, don’t want to eat GMO-fed animals, and they are concerned that fish farms could spread genetically modified material into the natural world. Most of Europe’s fish feed is non-GMO. Norway has prohibited genetically modified fish feed, and there is a push in Europe to build a verified non-GMO feed supply chain.

Nofima is leading a new project to determine the feed and nutrition requirements of cleaner fish, which are an important weapon in the struggle against sea lice on salmon farms. The first trials in the project will examine the nutrient needs of both species, and will be followed by an investigation into the need for micro-nutrients. “The objective for the aquaculture industry is to become self-sufficient in cultivated cleaner fish, and so it is necessary to know how we should feed cleaner fish so that they survive and can be efficient lice-eaters.”

Professor Berta Levavi-Sivan of the Hebrew University of Jerusalem has won the Kaye Innovation award for developing a new way to grow larger fish. She first identified tiny molecules named Neurokinin B (NKB) and Neurokinin F (NKF) that are secreted by the brains of fish and play a crucial role in their reproduction, and then developed molecules that neutralize the effect of NKB and NKF. The molecules inhibited fish reproduction and consequently led to increased growth rates. These inhibitors can now be included in fish feed to ensure better growth rates.

The National Aquaculture Association (NAA) and Florida Tropical Fish Farms Association spoke in support of US aquaculture during the first Farm Bill listening session held by the House Committee on Agriculture. Amy Stone and John Skidmore spoke from a letter prepared for the event by the NAA. They touched on a Specialty Crops designation for US aquaculture and USDA aquaculture research, aquatic animal health, Wildlife Services and catfish inspection programs.

The Commissioner for Commerce and Industry in Delta, Mrs Mary Iyasere, says the state government is establishing fish mills to boost fish production and reduce cost of fish feed in the state. According to her, the feed mills will be run on Public Private Partnership (PPP) initiative, which will allow the private firm to a holding of 45 per cent.