Feed & Grow: Fish Gameplay Overview:

If they’re not making fish feed with seafood, then what are the sources of essential nutrients?
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But in interviews last spring, after the pet food scandal, melamine scrap dealers — who sell the melamine waste material to anyone who will buy it — admitted that feed companies often bought melamine and that it was widely used in the fish feed industry.
Channa striata fed formulated feed in commercial ponds outperformed those fed trash fish.
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A semi-purified diet, developed to determine the optimum protein level required by young ornamental African cichlid fish (Royes, unpublished Dissertation). This diet also can be used as a basis for feeding other types of ornamental fish in the laboratory. The cichlid feed recipe was derived principally from salmonid formulations and uses casein as the purified protein source. The ingredients in the recipe are listed under major nutrient categories such as proteins, carbohydrates, lipids, vitamins, and minerals. Pigments are added to enhance the coloration in these ornamental fish. »FISH FEED & GROW = Um jogo onde vc no controle de um peixe tem que sobreviver e evoluir:
Photo provided by FlickrAquaNourish Fish Feed – Stage 2 – Juvenile (2.5″- 4″ fish) – Floating Pellets – 1.7mm – 10 pounds
Photo provided by FlickrThis article has been updated to clarify that feeds include fish products, among others.
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As we continue to deplete the ocean of wild fish in our never-ending quest to feed ourselves, we’ve turned to fish farming as a possible solution. But aquaculture hasn't always been the cleanest industry around. The , sponsored by Australian Aid, the World Wildlife Fund, and several others, aims to nurture new ideas in sustainable aquaculture development that help those already working in the industry improve their lives and make better products.The company is developing a microalgal feed that would be a vehicle for a variety of vaccines, reducing the need for antibiotics later. The benefits? The microalgae is something juvenile fish and shrimp would normally eat. Current vaccines don’t work well because they're not a natural part of the fish diet and pass through as waste, explains Antonio Lamb, who's part of the team developing the new oral vaccine.But one company has an idea that will help grow more seaweed and reinvigorate the ocean’s natural circulatory system using a series of polyethylene tubes that make it easier for the colder, denser, more nutritious water from the ocean’s depths to reach the surface and feed plants and fish.The use of plant-derived materials such as legume seeds, different types of oilseed cake, leaf meals, leaf protein concentrates, and root tuber meals as fish feed ingredients is limited by the presence of a wide variety of antinutritional substances. Important among these are protease inhibitors, phytates, glucosinolates, saponins tannins, lectins, oligosaccharides and non-starch polysaccharides, phytoestrogens, alkaloids, antigenic compounds, gossypols, cyanogens, mimosine, cyclopropenoid fatty acids, canavanine, antivitamins, and phorbol esters. The effects of these substances on finfish are reviewed. Evidently, little unanimity exists between the results of different studies as to the specific effects of antinutrients, since most studies have been conducted using an ingredient rich in one particular factor and the observed effects have been attributed to this factor without considering other antinutrients present in the ingredient, or interactions between them. Tentatively, protease inhibitors, phytates, antigenic compounds, and alkaloids, at levels usually present in fish diets containing commercially available plant-derived protein sources, are unlikely to affect fish growth performance. In contrast, glucosinolates, saponins, tannins, soluble non-starch polysaccharides, gossypol, and phorbol esters, are more important from a practical point of view. The effectiveness of common processing techniques such as dry and wet heating, solvent extraction and enzyme treatment in removing the deleterious effects of antinutrients from feed materials is discussed. More insights into the nutritional, physiological and ecological effects of antinutrients on fish need to be accumulated through studies using purified individual antinutrients and their mixtures in proportions similar to those in alternative nutritional sources in fish feeds. Such studies would provide data useful for designing optimum inclusion levels of plant-derived materials and treatment methods that would neutralise the negative effects of the antinutritional factors.