Juvenile rockfish Sebastes schlegelii (mean length 10.8±1.4 cm, and mean weight 31.7±3.6 g) were exposed for 4 weeks to different levels of dietary chromium (Cr⁶⁺) at 0, 120, and 240 mg/L and ascorbic acid (AsA) at 100, 200, and 400 mg/L. Growth performance of S. schlegelii was significantly decreased due to dietary Cr exposure, whereas lysozyme activity was notably increased. Exposure to dietary Cr resulted in substantial accumulation of Cr in the blood. Levels of two stress indicators, plasma cortisol and heat shock protein 70, of S. schlegelii were increased due to dietary Cr exposure. The results indicated that dietary Cr exposure affected growth performance, lysozyme activity, and stress responses of S. schlegelii, and high levels of AsA supplementation significantly attenuated dietary Cr-induced toxicity.

中文翻译：

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饮食中添加不同水平抗坏血酸的铬鱼幼鱼石斑鱼（Sebastes schlegelii）的生长性能和应激反应的变化

幼石鱼（Sebastes schlegelii）（平均长10.8±1.4 cm，平均体重31.7±3.6 g）在^0、120和240 mg / L和抗坏血酸（ AsA）的浓度为100、200和400 mg / L。由于饮食中铬的暴露，施氏链球菌的生长性能显着下降，而溶菌酶活性显着提高。饮食中的铬暴露导致血液中铬大量积累。的两个应力指标，血浆皮质醇和热休克蛋白70水平，S.许氏由于膳食的Cr曝光增加。结果表明，饮食中铬的暴露会影响链球菌的生长性能，溶菌酶活性和应激反应。，以及高水平的AsA补充可显着降低饮食中Cr诱导的毒性。