alexa Effects of The β-Carotene on the Growth Performance and Skin Pigmentation of Rainbow Trout (Oncorhynchus mykiss, W. 1792)
ISSN: 2332-2608

Journal of Fisheries & Livestock Production
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Research Article

Effects of The β-Carotene on the Growth Performance and Skin Pigmentation of Rainbow Trout (Oncorhynchus mykiss, W. 1792)

Kelestemur GT* and Çoban OE

Fisheries Faculty, Firat University, Department of Aquaculture, Elazig, Turkey

*Corresponding Author:
Kelestemur GT
Fisheries Faculty
Firat University
Department of Aquaculture
Elazig, Turkey
[email protected]

Received Date: December 07, 2015; Accepted Date: January 19, 2016; Published Date: January 25, 2016

Citation: Kelestemur GT, Çoban OE (2016) Effects of The ß-Carotene on the Growth Performance and Skin Pigmentation of Rainbow Trout (Oncorhynchus mykiss, W. 1792). J Fisheries Livest Prod 4:164. doi:10.4172/2332-2608.1000164

Copyright: © 2016 Kelestemur GT, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.



In this study, the effect of dietary supplementation of β-carotene (beta carotene) on growth and skin pigmentation of rainbow trout. Fish were fed with diets containing 30 and 70 mg β-carotene kg-1, and without supplemented basal diet for 12 weeks. Weight gain (WG), specific growth rate (SGR) and survival rate (SUR) in the C group was significantly lower (p<0.05) than beta carotene supplemented diet groups. Feed concervation ratio (FCR) in the C was significantly lower (p<0.05) than β-carotene supplemented diet groups. But PER of fish did not differ among the diet groups (p>0.05). Crude protein value of fish meat was higher in beta-carotene supplemented diet groups (p<0.05) than control diet group. But, crude lipid and ash were not statistically different among the groups (p>0.05). The lowest carotenoid concentration levels in the lateral and tail regions of the fishes in the experimental groups have been obtained in the C (control) group (lateral region: 0.263 ± 0.021 ug/g; tail ragion: 0.009 ± 0.002 ug/g) while the highest cumulative values have been determined in the fishes of β70 groups (lateral region: 0.643 ± 0.46 ug/g; tail region: 0.124 ± 0.015 μg/g).


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