{"refrec":{"BRefID":280903,"RR":"<b>Rollin, X.; Wauters, J.-B.; Bodin, N.; Larondelle, Y.; Ooghe, W.; Wathelet, B.; Abboudi, T.</b> (2006). Maintenance threonine requirement and efficiency of its use for accretion of whole-body threonine and protein in Atlantic salmon (<i>Salmo salar</i> L.) fry. <i>Br. j. nutr. 95(2)</i>: 234-245. <a href=\"https://dx.doi.org/10.1079/BJN20051491\" target=\"_blank\">https://dx.doi.org/10.1079/BJN20051491</a>","BEntID":272922,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>Br. j. nutr. 95(2)</i>: 234-245. <a href=\"https://dx.doi.org/10.1079/BJN20051491\" target=\"_blank\">https://dx.doi.org/10.1079/BJN20051491</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Rollin, X.; Wauters, J.-B.; Bodin, N.; Larondelle, Y.; Ooghe, W.; Wathelet, B.; Abboudi, T.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Rollin, X. <i>et al.</i>","Englishabstract":"Eighteen groups of seventy Atlantic salmon (<i>Salmo salar</i> L.) fry (initial mean body weight 0·8 (sd 0·01) g) were fed on semi-purified diets containing graded levels of l-threonine (Thr) in 15 litres aquaria at a temperature of 14·5±1°C. Doses of Thr represented 1, 31, 41, 51, 62, 72, 83 and 93% of its ideal level for optimum protein deposition. Indispensable amino acids other than Thr were included in the same proportion (on a g/16g N basis) as in the Atlantic salmon fry whole-body carcass. Following 36d of feeding and a 36h fast, fry were killed for whole-body protein and amino acid analysis. Weight gain (<i>r</i><sup>2</sup> 0·98), protein accretion (<i>r</i><sup>2</sup> 0·97), and Thr accretion (<i>r</i><sup>2</sup> 0·97) were linear (<i>P</i><0·01) functions of Thr intake. Slope of the Thr accretion regression line showed that the efficiency of Thr utilisation above maintenance was 76%. At zero Thr intake, fry lost 5·4mg Thr/kg body weight<sup>0·75</sup> per d. The Thr maintenance requirement was 7·2mg/kg body weight<sup>0·75</sup> per d and the Thr requirement for growth was 66mg for 1g protein deposition. Increasing doses of Thr resulted in increased (<i>P</i><0·05) concentrations of histidine and lysine, and decreased concentrations of isoleucine in whole-body protein. The maintenance need for Thr represented 13·4% of the total need for Thr. The data suggest that efficiency of Thr utilisation above maintenance is constant at all levels of Thr intake between 1 and 93% of the level required for optimum protein deposition.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Maintenance threonine requirement and efficiency of its use for accretion of whole-body threonine and protein in Atlantic salmon (<i>Salmo salar</i> L.) fry","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-06-10 01:32:03.600940","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":"threonine; amino acids; Atlantic salmon fry; maintenance requirement;growth requirement","OtherDescriptors":null,"Notes":null,"AnaPub":2006,"MonPub":null,"DateUpdate":"2022-07-13","DateCreate":"2016-10-09","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000235234700003","VABBcode":null,"OpenAcc":0,"DOI":"10.1079/BJN20051491"},"refs":null,"anarec":{"AnaID":280903,"PubliDate":2006,"Pagination":"234-245","XtraPublOfAnaID":null,"ISBN":null,"Volume":"95","Issue":"2","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":116183,"SerRR":"British Journal of Nutrition. 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