Effect of different light intensities on prolactin and cortisol plasma concentration in farming African catfish (Clarias gariepinus) in RAS with low-water exchange

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dc.contributor.authorBozhkov, Atanas
dc.contributor.authorNikolov, Galin
dc.contributor.authorÜRKÜ, Çiğdem
dc.contributor.authorZarpyanova, Dimitrinka
dc.contributor.authorAtanasoff, Alexander
dc.contributor.authorSecer, Faik S.
dc.contributor.authorKandir, Sinan
dc.date.accessioned2023-02-13T18:15:32Z
dc.date.available2023-02-13T18:15:32Z
dc.date.issued2023
dc.description.abstractIn the Bulgarian aquaculture sector, focusing research efforts on the technical specifications of the cultivation of African catfish (Clarias gariepinus) is important due to the need for more information. We aimed to assess the impact of light intensities on prolactin and cortisol levels as stress markers in African catfish. Fish were acclimated over an appropriate period to the short photoperiod (16D and 8L) and then distributed randomly to three groups, each separated by sex. Fish exposed to different light intensities (63, 51, and 40 lux, respectively) were followed for 45 days by lux meter. Blood samples were collected from the caudal vein using a 2 ml K2EDTA-coated syringe. A laser fluorescence reader assayed plasma prolactin and cortisol. The pituitary was removed from anesthetized fish and fixed for histological examinations. The results of our study suggest that increasing light intensity increases prolactin and cortisol levels in African catfish.
dc.format.extent7 pages
dc.identifier.doihttps://doi.org/10.46989/001c.70413
dc.identifier.issn0792-156X
dc.identifier.urihttps://hdl.handle.net/10524/68894
dc.relation.ispartofThe Israeli Journal of Aquaculture - Bamidgeh
dc.subjectAfrican Catfish
dc.subjectClarias gariepinus
dc.subjectcortisol
dc.subjectpituitary
dc.subjectprolactin
dc.titleEffect of different light intensities on prolactin and cortisol plasma concentration in farming African catfish (Clarias gariepinus) in RAS with low-water exchange
dc.typeArticle
dc.type.dcmiText
prism.volume75

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Volume 75, Issue 1, 2023