Comparative evaluation of non-protein nitrogenous compounds in fishes of fresh and brackish water environments

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dc.contributor.authorRaju, C.M.
dc.contributor.authorMathew, S.
dc.contributor.authorMathew, M.
dc.date.accessioned2014-01-06T06:39:58Z
dc.date.available2014-01-06T06:39:58Z
dc.date.issued2010
dc.description.abstractQuantitative comparison of the non-protein nitrogen (NPN) fractions viz., alpha-amino nitrogen, peptides, trimethylamineoxide (TMAO) and free amino acids from muscles of reared fishes of fresh and brackish water environments is attempted. Compared to fishes from the brackish water environments, those from the fresh water showed higher NPN content. Among the fresh water fishes, Labeo rohita accounted for maximum NPN content viz., 17.11% of the total nitrogen. Minimum values of peptides were recorded for Hypophthalmichthys molitrix and maximum for Labeo rohita. TMAO could not be detected in any fresh water fish. Maximum values for alpha-amino nitrogen were obtained for Liza macrolepis and Labeo rohita. Etroplus suratensis, collected from brackish water and fresh water environments showed significantly different peptide and TMAO values (p<0.05). In the case of free amino acids in the reared fishes, taurine, histidine, lysine and glycine were predominant. The results indicate that NPN fractions, TMAO, peptides and free amino acids show variations among species based on their habitats.en_US
dc.identifier.citationFishery Technology 2010: 47(2), 161-166en_US
dc.identifier.urihttp://hdl.handle.net/123456789/1288
dc.language.isoenen_US
dc.publisherSociety of Fisheries Technologists (India), Cochinen_US
dc.subjectAlpha-amino nitrogenen_US
dc.subjectglycineen_US
dc.subjecttaurineen_US
dc.titleComparative evaluation of non-protein nitrogenous compounds in fishes of fresh and brackish water environmentsen_US
dc.typeArticleen_US
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