Growth performance, antioxidant indexes, and the expression of genes were considerably promoted by dietary supplementation of alanyl‐glutamine and vitamin E in juvenile marine medaka in seawater acidification by carbon dioxide

The experiment was conducted to study the effect of different dietary supplementation alanyl-glutamine dipeptide (AGD) and/or vitamin E (VE) on growth performance, antioxidant indexes, and expression glutathione peroxidase (GPx) peroxisome proliferator-activated receptor α (PPARⱭ) genes in juvenile marine medaka (Oryzias melastigma) seawater acidification. Seven groups triplicate were studied an ecosystem. One them normal (pH 8.1, pH control), others acidification 7.7) regulated by carbon dioxide (CO2). juveniles separately fed for 10 weeks using one six diets. diets control diet (basic feed) without supplements other with amounts additional AGD VE. sampled randomly analysis a whole fish week 0 10. results showed that VE could considerably promote GPx PPARα optimal D4, 5 g 50 IU per kg dried feed.