Effects of Natural and Synthetic Astaxanthin on Growth, Body Color, and Transcriptome and Metabolome Profiles in the Leopard Coralgrouper (Plectropomus leopardus)
文献类型： 外文期刊
作者： Zhang, Junpeng 1 ; Tian, Changxu 1 ; Zhu, Kecheng 4 ; Liu, Yong 1 ; Zhao, Can 1 ; Jiang, Mouyan 1 ; Zhu, Chunhua 1 ; Li, Guangli 1 ;
作者机构： 1.Guangdong Ocean Univ, Fisheries Coll, Zhanjiang 524088, Peoples R China
2.Guangdong Prov Key Lab Aquat Anim Dis Control & Hl, Guangdong Prov Engn Lab Mariculture Organism Breed, Guangdong Res Ctr Reprod Control & Breeding Techno, Zhanjiang 524088, Peoples R China
3.Southern Marine Sci & Engn Guangdong Lab Zhanjiang, Zhanjiang 524088, Peoples R China
4.Chinese Acad Fishery Sci, Key Lab South China Sea Fishery Resources Exploita, Minist Agr & Rural Affairs, South China Sea Fisheries Res Inst, Guangzhou 510300, Peoples R China
关键词： Plectropomus leopardus; astaxanthin; coloration; transcriptome; metabolome
期刊名称：ANIMALS （ 影响因子：3.0； 五年影响因子：3.2 ）
ISSN： 2076-2615
年卷期： 2023 年 13 卷 7 期
页码：
收录情况： SCI
摘要： Natural and synthetic astaxanthin can promote pigmentation in fish. In this study, the effects of dietary astaxanthin on growth and pigmentation were evaluated in leopard coralgrouper (Plectropomus leopardus). Fish were assigned to three groups: 0% astaxanthin (C), 0.02% natural astaxanthin (HP), and 0.02% synthetic astaxanthin (AS). Brightness (L*) was not influenced by astaxanthin. However, redness (a*) and yellowness (b*) were significantly higher for fish fed astaxanthin-containing diets than fish fed control diets and were significantly higher in the HP group than in the AS group. In a transcriptome analysis, 466, 33, and 32 differentially expressed genes (DEGs) were identified between C and HP, C and AS, and AS and HP, including various pigmentation-related genes. DEGs were enriched for carotenoid deposition and other pathways related to skin color. A metabolome analysis revealed 377, 249, and 179 differential metabolites (DMs) between C and HP, C and AS, and AS and HP, respectively. In conclusion, natural astaxanthin has a better coloration effect on P. leopardus, which is more suitable as a red colorant in aquaculture. These results improve our understanding of the effects of natural and synthetic astaxanthin on red color formation in fish.
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