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dc.contributor.authorColoso, Relicardo M.
dc.contributor.authorTiro, Lillian B.
dc.contributor.authorBenitez, Lita V.
dc.date.accessioned2013-01-31T08:01:15Z
dc.date.available2013-01-31T08:01:15Z
dc.date.issued1992
dc.identifier.citationColoso, R. M., Tiro, L. B., & Benitez, L. V. (1992). Requirement for tryptophan by milkfish (Chanos chanos Forsskal) juveniles. Fish Physiology and Biochemistry, 10(1), 35–41.en
dc.identifier.issn0920-1742
dc.identifier.urihttp://hdl.handle.net/10862/1370
dc.description.abstractGroups of milkfish juveniles (mean initial weight 7.7 g) were fed semipurified diets containing 0.9, 1.4, 2.1, 3.1, 4.1 and 6.1 g tryptophan/kg dry diet for 12 weeks. The mean crude protein content of the diets (containing white fishmeal, gelatin and free amino acid mixture to simulate the pattern of hydrolysed milkfish protein) was 49%. On the basis of the growth response, the tryptophan requirement of milkfish juveniles was estimated to be 3.1 g/kg diet. Fish fed low levels of tryptophan exhibited low weight gains and poor feed conversion ratios. Survival (92–100%) was consistently high in all treatments. Fish fed diets containing tryptophan levels greater than 3.1 g/kg had slightly lower survival rates. The activity of hepatic tryptophan pyrrolase showed no significant differences with increasing dietary tryptophan levels. No nutritional deficiency signs were observed other than the depression in growth rates in fish given the tryptophan deficient diets.en
dc.language.isoenen
dc.publisherSpringer Verlagen
dc.subjectTryptophanen
dc.subjectMilkfishen
dc.subjectChanos chanos
dc.titleRequirement for tryptophan by milkfish (Chanos chanos Forsskal) juvenilesen
dc.typeArticleen
dc.identifier.doi10.1007/BF00004652
dc.citation.volume10
dc.citation.issue1
dc.citation.spage35
dc.citation.epage41
dc.citation.journalTitleFish Physiology and Biochemistryen
seafdecaqd.library.callnumberVF SJ 0368
seafdecaqd.databank.controlnumber1992-13
dc.subject.asfaAmino acidsen
dc.subject.asfaDietsen
dc.subject.asfaEnzymatic activityen
dc.subject.asfaFeeding experimentsen
dc.subject.asfaFish larvaeen
dc.subject.asfaFish physiologyen
dc.subject.asfaLiveren
dc.subject.asfaNutritional requirementsen
dc.subject.asfaProtein synthesisen


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