ABSTRACT
Fish meal is a high-protein-content feedstuff and is also an excellent source of essential amino acids. Shrimp diets have long been formulated with fish meal (FM) as the primary source of dietary protein. In contrast to traditional FMs used in crustacean diets, it contains high levels of carotenoid pigments and attractants, and has amino and fatty acid profiles that more closely resemble the profiles of the farmed crustaceans. There is a need to identify and utilize less expensive and more sustainable animal by-products within crustacean feeds. Fisheries by-products are often utilized in shrimp diets because they are excellent sources of indispensable amino acids, essential fatty acids, and generally enhance palatability. Squid meal has high protein values, from 70 percent to almost 90 percent. Crab meal is produced by drying the waste from crab processing and/or whole crabs. The high ash content of crab meal is due to the exoskeleton of crabs, which is particularly high in calcium.
