Effects of dietary astaxanthin on chromatic, biochemical, and histological characteristics in juvenile blood parrotfish (Vieja melanurus ♀ × Amphilophus citrinellus ♂)

This study investigated the effects of astaxanthin, a carotenoid supplement, on the physiology and coloration of juvenile blood parrotfish cultured in a recirculating aquaculture system. Fish were divided into three groups: a control group fed a basal diet for 84 days, a coloration (ASX) group fed a...

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Bibliographic Details
Published in:Aquaculture international 2024-10, Vol.32 (5), p.5977-5996
Main Authors: Micah, Adekunle David, Wen, Bin, Yusuf, Abdullateef, Onimisi, Meriyamoh Mero, Adeyemi, Samuel Olusegun, Gao, Jian-Zhong, Chen, Zai-Zhong
Format: Article
Language:English
Subjects:
Aquaculture
Aquaculture techniques
Biomedical and Life Sciences
Blood
Carotenoids
Cholesterol
Colour
Diet
Fish
Fish culture
Freshwater & Marine Ecology
Height
Life Sciences
Lipoproteins
Marine fishes
Recirculating aquaculture systems
Short-term changes
Spleen
Zoology
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Summary:This study investigated the effects of astaxanthin, a carotenoid supplement, on the physiology and coloration of juvenile blood parrotfish cultured in a recirculating aquaculture system. Fish were divided into three groups: a control group fed a basal diet for 84 days, a coloration (ASX) group fed an astaxanthin-enriched diet for 84 days, and a decoloration (ASX-) group initially fed an astaxanthin-enriched diet for 42 days and then switched to a basal diet for another 42 days. The results showed that astaxanthin increased the density of erythrophore cells in the skin of the fish, leading to increased ( P  
ISSN:0967-6120
1573-143X
DOI:10.1007/s10499-024-01451-1