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Brochure, flyer, fact-sheetMaking aquafeed more sustainable and accessible 2024
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No results found.Aquafeeds are the largest variable cost in fed aquaculture, accounting for up to 70 percent of total expenses. Their high cost can make fish farming unfeasible, which highlights the need for technological solutions.Improved knowledge of nutrition and the development of extruded feeds have contributed to driving the recent growth in production in the aquaculture sector. However, a gap exists between producers that have access to formulated commercial feed and those that lack it. There is a need to develop or adopt new local ingredients and production systems that allow the viability of small-scale aquaculture with limited resources. The Food and Agriculture Organisation of the United Nations (FAO) provides guidance on how to adopt sustainable practices in aquaculture focusing, among other issues, on choosing more sustainable ingredients for aqua feed. There are highlighted in the Guidelines for Sustainable Aquaculture.FAO has used its expertise to train people to use waste fish in Barbados to make silage that can be used in fish feed, has supposed farmers in formulating and manufacturing feed in Kyrgyzstan, and has trialled feed based on black soldier fly larvae in Nigeria. -
Book (series)Fish waste management
Assessment on potential production and utilization of fish silage in Bangladesh, Philippines and Thailand
2021Also available in:
No results found.A significant amount of fish by-products is produced during fish processing. These by-products represent 20–80 percent of the fish and provide a good source of macro- and micronutrients. Yet they often go unutilized, when they can easily be converted into a variety of products including fishmeal and oil, fish hydrolysates, fish collagen, fish sauce, fish biodiesel and fish leather. The production of fish silage using organic acid is a good example of the simple and inexpensive conversion processes which can be employed. Fish silage production uses minced by-products or minced whole fish unsuitable for human consumption as raw material, before adding a preservative to stabilize the mixture – usually an organic acid such as formic acid. The process breaks down protein into free amino acids and small-chain peptides which have nutritional and antimicrobial properties, therefore, the fish silage can be used as healthy feed and fertilizer. The feasibility studies on fish waste management in Bangladesh, Philippines and Thailand outline existing good practices on the utilization of by-products and fish waste. Furthermore, the insights provided on the potential production and utilization of fish silage in each country are promising in terms of increasing the productivity of the fisheries sector, reducing post-harvest waste, increasing economic value and improving environment sustainability. -
Book (stand-alone)Production and utilization of fish silage
A manual on how to turn fish waste into profit and a valuable feed ingredient or fertilizer
2018Also available in:
The processing of fish leads to a significant removal of parts of the fish, such as heads, bones, guts, etc., these parts can represent between 30-70% of the fish. The fish silage process transforms fish waste into a liquid mix of hydrolysed proteins, lipids, minerals and other nutrients, easily digestible by both terrestrial and aquatic animals. It can also serve as an excellent fertilizer. Fish silage could make a difference in terms of; i) environmental impact - by reducing levels of waste, ii) animal health - by providing nutrients and bioactive components, iii) economic gains - as waste is converted into a valuable product that can replace expensive feed ingredients, or be used as a fertilizer. This manual will provide technical guidance and explain each step and main principles of production and utilization of fish silage.
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