{"refrec":{"BRefID":362766,"RR":"<b>Hermsen, D.; Van de Waal, D.B.; Declerck, S.A.J.; Verreth, J.A.J.; Verdegem, M.C.J.</b> (2021). In situ fatty acid production supports shrimp yields in diets lacking fish oil and fishmeal. <i>Aquacult. Nutr. 27(2)</i>: 506-518. <a href=\"https://dx.doi.org/10.1111/anu.13202\" target=\"_blank\">https://dx.doi.org/10.1111/anu.13202</a>","BEntID":360484,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":0,"RefStringPartII":". <i>Aquacult. Nutr. 27(2)</i>: 506-518. <a href=\"https://dx.doi.org/10.1111/anu.13202\" target=\"_blank\">https://dx.doi.org/10.1111/anu.13202</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Hermsen, D.; Van de Waal, D.B.; Declerck, S.A.J.; Verreth, J.A.J.; Verdegem, M.C.J.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Hermsen, D. <i>et al.</i>","Englishabstract":"Using capture fishery-derived fish oil and fishmeal in aquafeeds is unsustainable. This study mimicked semi-intensive shrimp ponds, including primary producers, in mesocosm tanks. Fatty acid mass balances were computed to distinguish between diet-based and primary production-based LC-PUFA contributions to shrimp (Litopenaeus vannamei) production and meat quality. Performance and body fatty acid composition were compared of shrimp fed a commercial diet containing fish oil and fishmeal (control), with a fishmeal- and fish oil-free diet (low LC-PUFA diet: LOW). Six mesocosms were each stocked with 60 juvenile shrimp and randomly assigned to the two diets. After an 8-week grow-out period, biomass production, survival and proximate body composition were similar between diets. Control shrimp contained twice as much LC-PUFA and omega-3 fatty acids than LOW shrimp. Large quantitative losses (85%) were found in both treatments of the LC-PUFA-precursors alpha-linolenic acid (ALA) and linoleic acid (LA) that were being used as energy source by the shrimp instead for LC-PUFA synthesis. Whereas losses were also observed for eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) in the control group, there was a gain for these components in the LOW tanks. LOW shrimp sourced at least 32% of their total EPA gain and 15% of their total DHA gain from the algal-based food web. This quantitative analysis of the fate of major dietary fatty acids strongly suggests that the pond's primary production can provide shrimp additional LC-PUFA. Finding a balance between LC-PUFA contribution through formulated feed and natural production seems possible and deserves further research.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"In situ fatty acid production supports shrimp yields in diets lacking fish oil and fishmeal","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-06-13 01:31:59.435029","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":"DHA; EPA; fish oil; fishmeal; Litopenaeus vannamei; mesocosm; omega-3 fatty acids","OtherDescriptors":null,"Notes":null,"AnaPub":2021,"MonPub":null,"DateUpdate":"2023-03-28","DateCreate":"2023-03-27","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000599974800001","VABBcode":null,"OpenAcc":1,"DOI":"10.1111/anu.13202"},"refs":null,"anarec":{"AnaID":362766,"PubliDate":2021,"Pagination":"506-518","XtraPublOfAnaID":null,"ISBN":null,"Volume":"27","Issue":"2","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":42378,"SerRR":"Aquaculture Nutrition. 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