Effect Of Photoperiod On Plasma Thyroxine Hormone Level Of Mirror Carp (Cyprinus Carpio) Raised At A Low Water Temperature In A Controlled Environment

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dc.contributor.authorHisar, Sükriye Aras
dc.contributor.authorKirim, Birsen
dc.contributor.authorBektas, Serdar
dc.contributor.authorAltinkaynak, Konca
dc.contributor.authorHisar, Olcay
dc.contributor.authorYanik, Telat
dc.date.accessioned2012-01-19T20:14:04Z
dc.date.available2012-01-19T20:14:04Z
dc.date.issued2005
dc.description.abstractThe objective of this study was to examine the effects of various lighting regimes on the plasma thyroxin hormone (T4) level of mirror carp (Cyprinus carpio). The carp were kept at the low tem- perature of 9°C to eliminate any influence of water temperature on feed intake, growth, and the hormone level. Treatments were 8 h light:16 h dark, 12 h light:12 h dark, and 16 h light:8 h dark. Plasma thyroxin levels were measured every four weeks for 12 weeks. The levels were signifi- cantly higher (p<0.05) in the groups exposed to 8 or 12 h light than in the group exposed to 16 h. The T4 levels significantly dropped with time in all photoperiods.
dc.format.extent6 pages
dc.identifier.citationHisar, S.A., Kirim, B., Bektas, S., Altinkaynak, K., Hisar, O., & Yanik, T. (2005). Effect Of Photoperiod On Plasma Thyroxine Hormone Level Of Mirror Carp (Cyprinus Carpio) Raised At A Low Water Temperature In A Controlled Environment. The Israeli Journal of Aquaculture - Bamidgeh, 57(1), 19-24.
dc.identifier.issn0792-156X
dc.identifier.urihttp://hdl.handle.net/10524/19126
dc.publisherIsraeli Journal of Aquaculture - BAMIGDEH
dc.relation.ispartofseriesThe Israeli Journal of Aquaculture - Bamidgeh
dc.subjectmirror carp, photoperiod, thyroxin hormone, weight gain
dc.subject.lcshFish culture--Israel--Periodicals.
dc.subject.lcshFish culture--Periodicals.
dc.subject.lcshAquaculture--Israel--Periodicals.
dc.subject.lcshAquaculture--Periodicals.
dc.titleEffect Of Photoperiod On Plasma Thyroxine Hormone Level Of Mirror Carp (Cyprinus Carpio) Raised At A Low Water Temperature In A Controlled Environment

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IJA Volume 57, Issue 1, 2005