{"refrec":{"BRefID":238054,"RR":"<b>Toi, H.T.; Boeckx, P.; Sorgeloos, P.; Bossier, P.; Van Stappen, G.</b> (2014). Co-feeding of microalgae and bacteria may result in increased N assimilation in <i>Artemia</i> as compared to mono-diets, as demonstrated by a <sup>15</sup>N isotope uptake laboratory study. <i>Aquaculture 422-423</i>: 109-114. <a href=\"http://dx.doi.org/10.1016/j.aquaculture.2013.12.005\" target=\"_blank\">dx.doi.org/10.1016/j.aquaculture.2013.12.005</a>","BEntID":229741,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":null,"RefStringPartII":". <i>Aquaculture 422-423</i>: 109-114. <a href=\"https://dx.doi.org/10.1016/j.aquaculture.2013.12.005\" target=\"_blank\">https://dx.doi.org/10.1016/j.aquaculture.2013.12.005</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":0,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Toi, H.T.; Boeckx, P.; Sorgeloos, P.; Bossier, P.; Van Stappen, G.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Toi, H.T. <i>et al.</i>","Englishabstract":"This study investigated the effect of the co-feeding of bacteria and microalgae on nitrogen (N) assimilation in an <i>Artemia franciscana</i> gnotobiotic laboratory culture test. Two strains of bacteria were used, HT3 and HT6, isolated from previous <i>Artemia</i> laboratory cultures. These were fed in combination with microalga <i>Dunaliella tertiolecta</i> strains, either the high quality DT 19/6B or the low quality DT 19/27 strain. Each combination of algae and bacteria was offered in different proportions, i.e. 10/90, 50/50 and 90/10% on a dry weight basis, while the total amount of food supplied, which was based on a reference algae mono-diet, was kept constant. Mono-diets consisting of 100% algae and 100% bacteria were added as controls. N assimilation from either food source was determined by feeding in separate tests <sup>15</sup>N labeled microalgae with non-labeled bacteria and vice versa. Axenically hatched <i>Artemia</i> nauplii were fed these diets for 24 h, after which they were analyzed for <sup>15</sup>N content. The results of <sup>15</sup>N analysis showed that the N assimilation from bacteria in <i>Artemia</i> was improved when the bacteria were 10% replaced by microalgae, and for the combination of DT 19/6B and HT6 this increase was significant (P < 0.05). Also 50% replacement of HT6 by DT 19/6B resulted in higher, but non-significant, N assimilation from the bacteria as compared to the 100% bacteria mono-diet. A similar non-significant increase of N assimilation from DT 19/6B was observed as compared to the 100% algae diet when these algae were up to 50% replaced by HT6 bacteria. Other combinations of bacterial and microalgal strains generally produced similar or lower N assimilation as compared to the labeled mono-diet, when the labeled food component (bacteria or algae) was gradually replaced by the other (algae or bacteria). This study shows that, provided suitable strains are used, offering microalgae and bacteria together as food for <i>Artemia</i> may result in a synergistic effect in how this filter-feeding organism takes advantage of the respective food sources. This <i>Artemia</i> study can also be considered as a model for future research on the feeding biology of other filter-feeding aquaculture organisms.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Co-feeding of microalgae and bacteria may result in increased N assimilation in <i>Artemia</i> as compared to mono-diets, as demonstrated by a <sup>15</sup>N isotope uptake laboratory study","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2024-12-10 01:33:17.368041","timezone_type":1,"timezone":"+01:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":"Artemia; Bacteria; Dunaliella tertiolecta; N-15; Trypsin</td>","OtherDescriptors":null,"Notes":null,"AnaPub":2014,"MonPub":null,"DateUpdate":"2015-10-30","DateCreate":"2014-05-18","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000330221900014","VABBcode":null,"OpenAcc":0,"DOI":"10.1016/j.aquaculture.2013.12.005"},"refs":null,"anarec":{"AnaID":238054,"PubliDate":2014,"Pagination":"109-114","XtraPublOfAnaID":null,"ISBN":null,"Volume":"422-423","Issue":null,"BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":42190,"SerRR":"Aquaculture. 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