The Effects of Dietary Supplement of Rounded Brittle Fern Weed (Laurencia obtusa) (Hudson) (J.V.Lamouroux, 1813) as a Natural Carotenoid on Pigmentation in Rainbow Trout (Oncorhynchus mykiss)
The b* valueincreased in all groups in skin (P0.05).
📌 3 Key Takeaways
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Objective & Hypothesis:The aim of this study was to determine the effects of Laurencia obtusa (Hudson)as a natural carotenoid on the growth performance, biochemical composition and skinand fillet pigmentation in rainbow trout (Oncorhynchus mykiss).Laurencia obtusa was collected manually from the shores of Sinop (The BlackSea-Turkey) and included in the diet at two different ratios as 30 (L30) and 60 (L60)mg/kg diet.
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Key Findings & Data:The fish with an average weight of 248.9±6.1 g were fed by theexperimental diets for 6 weeks.The best growth performance was determined in L0.
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Conclusion & Impact:The b* valueincreased in all groups in skin (P0.05).
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters
Abstract
The aim of this study was to determine the effects of Laurencia obtusa (Hudson)as a natural carotenoid on the growth performance, biochemical composition and skinand fillet pigmentation in rainbow trout (Oncorhynchus mykiss).Laurencia obtusa was collected manually from the shores of Sinop (The BlackSea-Turkey) and included in the diet at two different ratios as 30 (L30) and 60 (L60)mg/kg diet. The fish with an average weight of 248.9±6.1 g were fed by theexperimental diets for 6 weeks.The best growth performance was determined in L0. The differences betweenprotein, fat and ash values of fish were not significant (P>0.05). At the end of thestudy, the L* value was highest in the L0 group (59.94±1.28) and lowest in the L60group (53.43±1.98) and, in fillet, it decreased in all experimental groups compared tothe initial values (P0.05). The b* valueincreased in all groups in skin (P0.05).
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Cite This Article
KARACUHA, A., ÖZTÜRK, D. K., BAKİ, B., KERİM, M., EYÜBOĞLU, B. (2022). The Effects of Dietary Supplement of Rounded Brittle Fern Weed (Laurencia obtusa) (Hudson) (J.V.Lamouroux, 1813) as a Natural Carotenoid on Pigmentation in Rainbow Trout (Oncorhynchus mykiss). Aquaculture Studies, Cilt: 18 - Sayı: 1, 11–17. https://ajindex.com/articles/447624
Anonymous, 2018. The Use of Algae in Fish Feeds as Alternatives to Fishmeal. https://thefishsite.com/articles/the-use-of-algae-in- fish-feeds-as-alternatives-to-fishmeal. AOAC, 2000. Official Methods of Analysis. Gaithersburg, MD: Association of Official Analytical Chemists. Brown, K.R., Barnes., M.E., Parker, T.M. & Fletcher, B., 2016. Retention of Fillet Coloration in Rainbow Trout After Dietary Astaxanthin Cessation. Fisheries and Aquaculture Journal. 7(1):1-3. http://dx.doi.org/10.4172/2150-3508.1000163.
Büyükçapar, H.M., Yanar, M. & Yanar, Y., 2007. Pigmentation of Rainbow Trout (Oncorhynchus mykiss) with Carotenoids from Marigold Flower (Tagetes erecta) and Red Pepper (Capsicum annum). Turkish Journal of Veterinary and Animal Sciences, 31(1): 7-12.
Choubert, G. & Blanc, J.M., 1985. Flesh colour of diploid and triploid Rainbow trout fed canthaxanthin, Aquaculture, 47: 299-304.
Cui, Z. H., Wang, Y. & Qin, J.G., 2006. Compensatory growth of group-held gibel Carp, Carassius auratus gibelio (Bloch), following feed deprivation. Aquaculture Research., 37, 313-318. https://dx.doi.org/10.1111/j.1365-2109.2005.01418.x.
Dantagnan, P., Hernandez, A., Borguez & Mansilla, A., 2009. Inclusion of macroalgae meal (Macrocystis pyrifera) as feed ingredient for rainbow trout (Oncorhynchus mykiss): effect on flesh fatty acid composition. Aquaculture Research, 41:87-94 https://dx.doi.org/10.1111/j.1365-2109.2009.02308.x.
Diler, İ., Hoşsu, B., Dilek, K., Emre, Y. & Sevgili, H., 2005. Effects of natural and synthetic pigments in diets on flesh coloration and growth of rainbow trout (Oncorhynchus mykiss), Bamidgeh, 57(3): 175-184.
Diler, I., Tekinay, A.A., Güroy, D., Güroy, B.K. & Soyutürk, M., 2007. Effects of Ulva rigida on the growth, feed intake and body composition of common carp, Cyprinus carpio L. The Journal of Biological Sciences 7, 305–308.
Doolan, B.J., Booth, M.A. & Allan, G.L., 2009. Effects of dietary astaxanthin concentration and feeding period on the skin pigmentation of Australian snapper Pagrus auratus. Aquaculture Research, 40: 60-68.
Ergün, S., Bircan, R., Türker A. & Baki, B., 2000. Pigmentation of rainbow trout (Oncorhynchus mykiss, W., 1792) reared on semi-moist diets containing synthetic astaxanthin. Symposium on Fisheries, Sinop- Turkey (20-22 September 2000), p. 133-144.
Ergün, S., Soyutürk, M., Güroy, B., Güroy, D. & Merrifield, D., 2009. Influence of Ulva meal on growth, feed utilization, and body composition of juvenile Nile tilapia (Oreochromis