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Fish feed and nutrition
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Due to its high palatability and digestibility, as well as its balanced amino acid profile, the aquaculture industry has relied heavily upon fish meal as a major component of aquafeeds; especially for the culture of higher level carnivores, such as the salmonids and certain marine finfish (Hardy, 1999). Global fish meal supplies have remained stable for the past 15 years at approximately 7 million metric tons (mmt) (Tidwell and Allen, 2001; New and Wijkstrom, 2002). But, rather than showing...
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The Soil Association has declared the elimination of synthetic antioxidants in its certified organic fish feeds, giving a new layer of assurance to consumers who wish to purchase organic produce. Organic foods and feeds for organically-reared avoid the use of all synthetic ingredients. Although the organic feed used in land farming had already replaced synthetic antioxidants with natural alternatives, it was more of a challenge in fish farming. The aquaculture industry has relied...
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In recent years there has been particular interest in the role of zinc (Zn) and selenium (Se) in the maintenance and promotion of animal health. Selenium is well known for its anti-cancer and powerful antioxidant properties (Ganther, 1999; Rayman, 2000; Surai, 2002). Zinc is known for its essential role in growth, immunity and DNA replication. Research on all essential elements, including zinc and selenium, has concentrated on higher organisms, with work on fish being rather fragmentary...
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Add this to the list of ethanol's potential benefits: lowering the cost of fish production. Fish feed is a major expense for many aquaculture operations. New research by Agricultural Research Service (ARS) scientists shows that ethanol co-products can provide protein for fish feeds at a lower cost than the soybean-corn combinations commonly used. The recent proliferation of ethanol processing facilities has led to a surplus of distiller's dried grains with solubles, or DDGS—a...
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PRICHEMIN MIX
Priya's PRICHEMIN MIX is a mineral supplement for aquaculture. It consists of a mix of mineral chelats from aminoacids
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A new analytical method developed at NIFES determines the content of mercury, arsenic, cadmium and lead in foodstuffs in the same method. The method was recently approved as a reference method in the Nordic Committee on Food Analysis. The EU has maximum limits for mercury, lead and cadmium in seafood. Previously, it was necessary to utilize several different analytical methods in order to determine the levels of these metals in foodstuffs. Now, by using a single method, the...
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Although the search for alternatives to fish meal in aquafeeds has been active for the last 30 years (Cho et al., 1974; Dabrowska and Wojno, 1977; Higgs et al., 1978), efforts in the last decade have been intensified on a worldwide scale (Kaushik et al., 1995; Adelizi et al., 1998; Barrows and Hardy, 2001; Lee et al., 2002; Yamamoto et al., 2002). Multiple factors are driving these efforts including regulatory concerns on the environmental effects of nutrient release (Barrows and...
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Aquaculture is expanding in Indonesia, creating an opportunity to increase exports of U.S. distiller’s dried grains with solubles (DDGS). To capitalize on this trend, Dr. Budi Tangendjaja, USGC technical program manager in Indonesia, and Tran Trong Chien, USGC country representative in Vietnam, presented papers on catfish production in Vietnam and the results of feeding trials using DDGS in catfish and tilapia feed at IndoAqua 2007, an aquaculture conference organized by Indonesia’s...
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Aquaculture is expanding in Indonesia, creating an opportunity to increase exports of U.S. distiller’s dried grains with solubles (DDGS). To capitalize on this trend, Dr. Budi Tangendjaja, USGC technical program manager in Indonesia, and Tran Trong Chien, USGC country representative in Vietnam, presented papers on catfish production in Vietnam and the results of feeding trials using DDGS in catfish and tilapia feed at IndoAqua 2007, an aquaculture conference organized by Indonesia’s...
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PRICHEMIN MIX
Priya's PRICHEMIN MIX is a mineral supplement for aquaculture. It consists of a mix of mineral chelats from aminoacids
Suggested link
Aquafeeds have traditionally relied upon fish meals as the major provider of intact protein sources. Indeed, fish meal is often considered to represent the single most utilizable and efficient dietary protein source for carnivorous fishes. However, global production of fish meal has remained relatively static over the last 10-15 years, with supplies unlikely to increase due to severe pressure being exerted on all capture fisheries, including the stocks traditionally relied upon for fish meal...
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In 2006, the Chilean salmon industry produced 600,000 MT of salmonids, of which 10% were produced by Empresas AquaChile S.A., the second largest salmonid producer in the world (Aqua.cl, 2006). In that same year Chilean salmon producers sustained an approximate 12% loss due to mortality (SGS Aquatic Health, 2006). Over half of this loss can be attributed to health-related stressors such as viral, bacterial and/or pathogenic outbreaks (e.g., salmonid rickettsial septicaemia (SRS),...
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The Fisheries College and Research Institute (FCRI) at Tuticorin has developed a unique single cell diet that can be used as a cost-effective substitute for micro algae cultures for shrimp larvae reared in marine hatcheries. Named ‘Marine Single Cell Detritus,’ the product was derived from seaweeds by a team of three scientists at the institute led by S Felix, Professor of Biotechnology Centre. Speaking to The Hindu, V. K. Venkataramani, the FCRI Dean, said that the feed was...
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In Latin America aquaculture production is oriented toward supplying the export market. Exportation of fish and shrimp are major industries in Chile, Peru, Argentina, Uruguay and Ecuador. Ecuador and Chile lead Latin America in aquaculture; and in Ecuador it is the third most important economic industry. Chilean aquaculture is mainly concerned with production of trout, coho and Atlantic salmon. This rapidly developing sector of the economy produced just 4,200 tons for export in 1988...
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PRICHEMIN MIX
Priya's PRICHEMIN MIX is a mineral supplement for aquaculture. It consists of a mix of mineral chelats from aminoacids
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Aquaculture is the fastest growing segment of livestock production worldwide, growing in large part because production is switching to more intensive, higher input systems. The main input is feed, which offers tremendous opportunities for aquafeed manufacturers and associated product suppliers. It also presents significant challenges to all sectors of the industry. The protein content in commercial aquafeed, while differing for various species, is much higher than those for...
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The success of intensive aquaculture has been the direct result of improved genetics, nutrition and management as well as maximising disease control. A commercial production system can only be economically viable if these factors are optimised. Key zootechnical parameters to evaluate the efficacy of a system include growth rate, feed conversion ratio (FCR) and mortality, which are influenced primarily by the quality of feed and feed intake. For many years water quality has been the...
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The slow growth of the European sea bream and sea bass markets, together with progressive decreases in price and profit margins is leading to diversification of marine aquacultured species in the Mediterranean region. Red porgy (Pagrus pagrus), a close species to the widely cultured red sea bream (Pagrus major), is a fish highly appreciated for its nice appearance, firm flesh and delicate flavour, and brings prices over 20 €/kg in some European markets. Its range of distribution extends to...
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While the absolute nutritional requirements of prawns appear to be similar to those of penaeid shrimps, the diets used in their commercial pond production differ significantly. This is due primarily to the lower biomass densities at which prawns are cultured, which allows a greater contribution of natural foods in their production. A series of studies at Kentucky State University evaluated the roles of natural foods, preferences for different taxa of natural foods, and the development of the...
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PRICHEMIN MIX
Priya's PRICHEMIN MIX is a mineral supplement for aquaculture. It consists of a mix of mineral chelats from aminoacids
Suggested link
One of the great challenges of the next decade will be to provide sufficient high quality proteins for the rapidly growing aquaculture industry. A wide range of species to be farmed will necessitate sourcing feed proteins that are able to meet the specific requirements of the target species. Fish meals have traditionally provided a large proportion of the protein required by aquaculture species, and even if there is no immediate shortage of supply, there are requirements for alternatives for...
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Although aquaculture’s contribution toward total world fisheries landings has increased six-fold over the past three decades, increasing from 5.3% to 34.1% from 1970 to 2001 (Figure 1), the finfish and crustacean aquaculture sector is still highly dependent upon marine capture fisheries for sourcing key dietary nutrient inputs such as fish meal and fish oil. In fact when viewed in wet fish weight equivalents, although only about 17.7 million metric tons (mmt) or 37% of total global...
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The aquafeed industry in relation to salmonid fish culture is particularly reliant on the use of high quality ingredients such as fish meal and fish oil that constitute the major components of the nutrient-dense feed. However the addition of pigmenting carotenoids is an essential process in order to ensure that the characteristic pink/red flesh colouration is maintained during the production of farm-raised trout and salmon in many countries. A pink to red colour in the flesh of...
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Introduction The United Nations (UN) estimates that by 2037 the world’s population will have exceeded 10 billion. This rapid growth in humankind will bring with it severe difficulties, not only in terms of providing shelter, education, and health care, but also in maintaining current levels of protein nutrition. The Food and Agricultural Organization (FAO) of the UN acknowledge that global fishery output must be increased by at least 50% to offset projected shortfalls in...
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