Nitrogen excretion patterns and postprandial ammonia profiles in Black Sea turbot (Scophthalmus Maeoticus) under controlled conditions

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dc.authoridAral, Orhan/0000-0001-8550-9970
dc.contributor.authorYigit, M
dc.contributor.authorErdem, M
dc.contributor.authorAral, O
dc.contributor.authorKaraali, B
dc.date.accessioned2025-01-27T20:41:09Z
dc.date.available2025-01-27T20:41:09Z
dc.date.issued2005
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractMeasurements of the rate of nitrogenous excretion were carried out in two batches of young Black Sea turbot (small 42 g, large 72 g) at 12 +/- 1 degrees C under natural light conditions (10 h light:14 In dark and 13 h light: 11 h dark, respectively). The ammonia nitrogen excretion rates of fish starved for 48 hours were 0.20 +/- 0.05 mg-N for the small fish and 0.18 +/- 0.09 mg-N/100g fish/h for the large. Fish were then fed a pellet diet containing 8.3% nitrogen at average rations of 0.67% and 0.59% of the body weight, respectively, for four days. On the fourth day, ammonia nitrogen excretion rates were evaluated. In both batches, the rates were 2-3 times higher immediately after feeding than in the starved fish, reaching a peak 3-6 hours after feeding and declining afterwards. For the small and large fish, respectively, 21% and 20% of the consumed nitrogen was excreted as ammonia nitrogen, 6% and 7% as urea nitrogen, and 8% and 4% as feces nitrogen within 24 hours after feeding.
dc.identifier.endpage240
dc.identifier.issn0792-156X
dc.identifier.issue4
dc.identifier.scopus2-s2.0-29744455874
dc.identifier.scopusqualityQ4
dc.identifier.startpage231
dc.identifier.urihttps://hdl.handle.net/20.500.12428/24036
dc.identifier.volume57
dc.identifier.wosWOS:000234385900003
dc.identifier.wosqualityQ4
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherSociety Of Israeli Aquaculture & Marine Biotechnology
dc.relation.ispartofIsraeli Journal of Aquaculture-Bamidgeh
dc.relation.publicationcategoryinfo:eu-repo/semantics/openAccess
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20250125
dc.subjectammonia
dc.subjectBlack Sea turbot
dc.subjectintensive fish culture
dc.subjectnitrogen excretion
dc.subjectScophthalmus maeoticus
dc.titleNitrogen excretion patterns and postprandial ammonia profiles in Black Sea turbot (Scophthalmus Maeoticus) under controlled conditions
dc.typeArticle

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