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dc.contributor.authorColoso, Relicardo M.
dc.contributor.authorMurillo-Gurrea, D.P.
dc.contributor.authorBorlongan, Ilda G.
dc.contributor.authorCatacutan, Mae R.
dc.date.accessioned2012-07-23T06:50:50Z
dc.date.available2012-07-23T06:50:50Z
dc.date.issued1999
dc.identifier.citationColoso, R. M., Murillo-Gurrea, D. P., Borlongan, I. G., & Catacutan, M. R. (1999). Sulphur amino acid requirement of juvenile Asian sea bass Lates calcarifer. Journal of Applied Ichthyology, 15(2):54-58.en
dc.identifier.issn0175-8659
dc.identifier.urihttp://hdl.handle.net/10862/1003
dc.description.abstractThe dietary requirement of juvenile Asian sea bass Lates calcarifer for total sulphur amino acids was studied. Fish (average initial weight of 2.59 plus or minus 0.08 g) were reared in twelve 500 L fibreglass tanks provided with flow-through seawater at 26 degree C and salinity of 31 ppt for 12 weeks. They were fed semipurified test diets containing 6.2, 7.2, 8.1, 9.0, 10.8, or 12.6 g methionine/kg dry diet and a basal level of 3.1 g cystine/kg dry diet. The mean crude protein of the diets (containing defatted Peruvian fishmeal, squid meal, soybean meal, and free amino acid mixture to simulate the pattern of hydrolysed sea bass protein) was 46.02 %. The crude fat content of the diets was 10.51 % from a 1:1 mixture of cod liver oil and soybean oil. Survival was 100 % in all treatments. On the basis of the growth response, the total sulphur amino acid requirement of juvenile Asian sea bass was estimated to be 13.4 g/kg dry diet (2.9 % of protein). Fish fed low levels of L-methionine had significantly lower weight gains and feed efficiency ratios as well as slightly higher hepatosomatic indices. No nutritional deficiency signs were observed other than growth depression in fish fed on diets that were low in methionine. This information is valuable in further refinement of formulations of practical diets for the Asian sea bass.en
dc.language.isoenen
dc.publisherJohn Wiley and Sonsen
dc.subjectAmino acidsen
dc.subjectBiological developmenten
dc.subjectCulture tanksen
dc.subjectDietsen
dc.subjectFeed efficiencyen
dc.subjectFish cultureen
dc.subjectJuvenilesen
dc.subjectNutritional requirementsen
dc.subjectProteinsen
dc.subjectRearingen
dc.subjectSulphuren
dc.subjectLates calcariferen
dc.subjectGiant perchen
dc.subjectGrowthen
dc.titleSulphur amino acid requirement of juvenile Asian sea bass Lates calcariferen
dc.typeArticleen
dc.citation.volume15
dc.citation.issue2
dc.citation.spage54
dc.citation.epage58
dc.citation.journalTitleJournal of Applied Ichthyologyen
dc.identifier.doi10.1046/j.1439-0426.1999.00123.x


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  • AQD [1129]
    These papers were contributed by AQD staff to various national and international journals

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