Displaying items by tag: resources
Producing food requires huge resources but an estimated one seventh of the resulting products are lost before they are consumed, and in the case of fish and seafood as much as one third! Whether spoiled, destroyed or carelessly thrown away – losses on the way from origin to plate are high. New strategies are now being developed to reduce or, better still, to avoid food waste and losses altogether.
This article was featured in EUROFISH Magazine 5 /2020.
During the catching and processing of fish and seafood considerable amounts of waste occur. Some of it, roughly estimated at around 17%, is “disposed of” at sea immediately after the catch. About twice as much is lost during processing on land. And then there are also losses that occur during transport, at individual stages of trade, in the catering trade, or in consumers’ homes. A definition of the Food and Agriculture Organisation (FAO) is often used to distinguish between “food losses” and “food waste”.
Although aquafeed manufacturers still can’t do completely without fishmeal and fish oil they are in the meantime much less dependent on marine ingredients and are increasingly using alternative raw materials to meet the protein and nutrient requirements of fish, shellfish and crustaceans. Modern processing methods today enable the use of numerous new resources.
This article featured in EUROFISH Magazine 2 2020.
According to the FAO an additional 27 million tonnes of seafood will have to be produced by 2030 in order to maintain the current supply level. This will be impossible without expanding aquaculture production, however, and will lead to an increased demand for aquafeed. That, in turn, poses enormous problems for the feed industry because the supply of fishmeal and fish oil cannot be increased at will without jeopardising the sustainability of industrial fishing. Traditionally, fishmeal has been the preferred source of protein for aquafeed due to its high protein content, well-balanced amino acid profile, and good digestibility. Global fishmeal production has been stagnating for more than 30 years, however, and might now even be on a decline. On average, the fishmeal industry uses about 20 million tonnes of raw materials a year for the production of approximately 5 million tonnes of fishmeal and 1 million tonnes of fish oil. Three quarters of this is processed to feed for aquaculture. Because the available quantities are not sufficient to meet demand the feed industry has to resort to alternative raw materials.