Ovary transcriptomic analysis reveals regulation effects of dietary fish oil on hormone, lipid, and glucose metabolism in female adult spotted scat (Scatophagus argus)

In the aquaculture industry, fish oil is widely used as a nutritional supplement to promote gonadal maturation of broodstocks, while mechanism on ovary development remain unclear. Herein, female adult spotted scat ( Scatophagus argus ) with most ovaries at phase II were fed diets containing 8% soybean (SO) or (FO) for 60 days. The final average body weight was similar between FO and SO groups. gonadosomatic index (GSI) group higher (non-significant) than that group. Finally, IV groups 7 5 out 10, respectively. serum estradiol (E2) level significantly proportions n-3 long-chain polyunsaturated fatty acids (LC-PUFA, such docosahexaenoic acid (DHA) eicosapentaenoic (EPA)) in much These results suggest maturity relatively Transcriptome sequencing detect gene expression. Comparatively, transcriptome analysis showed 68 up-regulated 193 down-regulated genes expression levels Jund Jun necessary group, Pparγ Cxcl12 , which could inhibit development, Cyp3a27 coding enzyme degrading estrogen coincided increase its E2. Kif5b regulate glucose metabolism Serum insulin also increased Additionally, Aldh3a2 Plin2 related lipid Briefly, dietary can influence steroid hormone, metabolism. This study will clarify promoting teleost fish.