hermon-algaeinfish-2015.pdf (2.84 MB)
Algae in fish feed: performances and fatty acid metabolism in juvenile Atlantic Salmon
journal contribution
posted on 2015-01-01, 00:00 authored by Fernando Norambuena, Karen Maree Hermon, Vanessa SkrzypczykVanessa Skrzypczyk, James Emery, Y Sharon, A Beard, Giovanni TurchiniGiovanni TurchiniAlgae are at the base of the aquatic food chain, producing the food resources that fish are adapted to consume. Previous studies have proven that the inclusion of small amounts (<10% of the diet) of algae in fish feed (aquafeed) resulted in positive effects in growth performance and feed utilisation efficiency. Marine algae have also been shown to possess functional activities, helping in the mediation of lipid metabolism, and therefore are increasingly studied in human and animal nutrition. The aim of this study was to assess the potentials of two commercially available algae derived products (dry algae meal), Verdemin (derived from Ulva ohnoi) and Rosamin (derived from diatom Entomoneis spp.) for their possible inclusion into diet of Atlantic Salmon (Salmo salar). Fish performances, feed efficiency, lipid metabolism and final product quality were assessed to investigated the potential of the two algae products (in isolation at two inclusion levels, 2.5% and 5%, or in combination), in experimental diets specifically formulated with low fish meal and fish oil content. The results indicate that inclusion of algae product Verdemin and Rosamin at level of 2.5 and 5.0% did not cause any major positive, nor negative, effect in Atlantic Salmon growth and feed efficiency. An increase in the omega-3 long-chain polyunsaturated fatty acid (n-3 LC-PUFA) content in whole body of fish fed 5% Rosamin was observed.
History
Journal
PLoS OneVolume
10Issue
4Season
Article Number : e0124042Article number
e0124042Pagination
1 - 17Publisher
Public Library of Science (PLOS)Location
San Francisco, Calif.Publisher DOI
eISSN
1932-6203Language
engPublication classification
C Journal article; C1 Refereed article in a scholarly journalCopyright notice
2015, Public Library of Science (PLOS)Usage metrics
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Animal FeedAnimal Nutritional Physiological PhenomenaAnimalsBody WeightDiatomsDietDietary Fats, UnsaturatedHumansLipid MetabolismSalmo salarUlvaScience & TechnologyMultidisciplinary SciencesScience & Technology - Other TopicsTILAPIA OREOCHROMIS-NILOTICUSULVA MEAL SUPPLEMENTATIONBODY-COMPOSITIONRAINBOW-TROUTNILE TILAPIAAMINO-ACIDGROWTH-PERFORMANCELIPID-METABOLISMEDIBLE SEAWEEDDIETARY FIBER
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