Effect of dietary astaxanthin on growth, body color, biochemical parameters and transcriptome profiling of juvenile blood parrotfish (Vieja melanurus ♀ × Amphilophus citrinellus ♂)

作者：Micah Adekunle David; Wen Bin; Wang Qin; Zhang Yuan; Yusuf Abdullateef; Thierry Nyatchouba Nsangue Bruno; Tokpanou Olivier Sonagnon; Onimisi Meriyamoh Mero; Adeyemi Samuel Olusegun; Gao Jian-Zhong; Chen Zai-Zhong

来源：Aquaculture Reports, 2022, 24: 101142.

DOI：10.1016/J.AQREP.2022.101142

• Astaxanthin
• Coloration
• Decoloration
• Ornamental fishes
• Transcriptome

To investigate the effects of dietary astaxanthin on fish growth and body color, blood parrotfish juveniles were assigned to three groups: control (CL), fed a diet without astaxanthin supplementation for 12 weeks; coloration (ASTA+), fed a diet containing 0.45?g/kg astaxanthin for 12 weeks; decoloration (ASTA-) fed the diet supplemented with astaxanthin for the first six weeks and then the control diet for the other six. Our results showed that the specific growth rate showed no significant difference between ASTA+?and CL at weeks 3 and 6 and among ASTA+?, ASTA- and CL at weeks 9 and 12. The ASTA+?group showed higher skin redness at weeks 3, 6, 9 and 12 and higher yellowness at weeks 6, 9 and 12 than CL, and than ASTA- at week 12. The ASTA+?group had higher concentrations of astaxanthin, HDL-C and LDL-C than the CL at weeks 3, 6, 9, and 12 and than ASTA- group at weeks 9 and 12. By compared ASTA+?and ASTA- with CL, a total of 4250 differentially expressed genes (DEGs) were detected. Pathways, e.g., PPRA signa...

• 单位
  上海海洋大学