The Effects of Different Carotenoid Sources on Skin Pigmentation of Goldfish (Carassius auratus)

dc.contributor.author Yeşilayer, Nihat
dc.contributor.author Aral, Orhan
dc.contributor.author Karsli, Zafer
dc.contributor.author Öz, Meryem
dc.contributor.author Karaçuha, Ali
dc.contributor.author Yağci, Feraye
dc.date.accessioned 2014-06-09T20:38:57Z
dc.date.available 2014-06-09T20:38:57Z
dc.date.issued 2011
dc.description.abstract The aim of this study was to investigate the effect of different carotenoid sources on goldfish (Carassius auratus) skin pigmentation. The value of goldfish depends on the intensity of the skin color. In the red variety of goldfish, an orange-red hue is desirable. Juvenile goldfish were fed one of five diets for five months to determine the effects of carotenoids on skin pigmentation, growth, feed efficiency, and survival: (1) astaxanthin (carophyll pink at 75 mg/kg), (2) canthaxanthin (carophyll red at 75 mg/kg), (3) Gammarus spp. (75 mg/kg), (4) Oleoresin paprika (180 mg/kg), and (5) an unsupplemented control. Growth and feed efficiency did not significantly differ among groups. Initial and final samples of head skin were measured by colorimetric analysis for lightness (L*), redness (a*), yellowness (b*), hue (Hºab), and chroma (Cab*). The best red color (a* and Hºab) was obtained with the astaxanthin, canthaxanthin, and paprika diets.
dc.format.extent 9 pages
dc.identifier.citation Nihat Yeşilayer, Orhan Aral, Zafer Karsli, Meryem Öz, Ali Karaçuha, Feraye Yağci (2011). The Effects of Different Carotenoid Sources on Skin Pigmentation of Goldfish (Carassius auratus) . The Israeli Journal of Aquaculture - Bamidgeh, 63, 9 pp.
dc.identifier.issn 0792-156X
dc.identifier.other IIC:63.2011.523
dc.identifier.uri http://hdl.handle.net/10524/36293
dc.publisher Israeli Journal of Aquaculture - BAMIGDEH
dc.relation.ispartofseries The Israeli Journal of Aquaculture - Bamidgeh
dc.subject goldfish
dc.subject pigmentation
dc.subject Oleoresin paprika
dc.subject Gammarus spp.
dc.subject astaxanthin
dc.subject canthaxanthin
dc.subject colorimetric analysis
dc.subject.lcsh Fish culture--Israel--Periodicals.
dc.subject.lcsh Fish culture--Periodicals.
dc.subject.lcsh Aquaculture--Israel--Periodicals.
dc.subject.lcsh Aquaculture--Periodicals.
dc.title The Effects of Different Carotenoid Sources on Skin Pigmentation of Goldfish (Carassius auratus)
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