Abstract The use of food additives is an important preventive approach that has proven to maintain the health status of fish, especially under stressful conditions. The dietary ferulic acid (FA) was included in the diets at 0, 20, 40, 80, and 160 mg per kg to investigate its beneficiary aspects on Nile tilapia. After 60 days, fish were exposed to heat stress (HS), then blood and liver samples were collected. Before HS, the growth performance was linearly and quadratically affected by the inclusion of FA and reported the highest rates by 80 mg/kg diet. The hemoglobin and red blood cells were also linearly and quadratically affected by dietary FA and reported the highest levels by 40 and 80 mg FA/kg. After HS, the blood glucose, cortisol, superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx), and malondialdehyde (MDA) values were increased with comparison to the rates before HS, and dietary FA reduced theses values either before or after HS in a dose-dependent regime (linearly and quadratically P

中文翻译：

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阿魏酸对热应激下尼罗罗非鱼(Oreochromis niloticus)生长性能、血液免疫反应及免疫相关基因的影响

摘要 使用食品添加剂是一种重要的预防方法，已被证明可以保持鱼类的健康状态，尤其是在压力条件下。阿魏酸 (FA) 以 0、20、40、80 和 160 毫克/公斤的浓度包含在日粮中，以研究其对尼罗罗非鱼的益处。60 天后，鱼暴露于热应激 (HS)，然后收集血液和肝脏样本。在 HS 之前，生长性能受包含 FA 的线性和二次影响，并报告了 80 mg/kg 饮食的最高速率。血红蛋白和红细胞也受膳食 FA 的线性和二次影响，并报告了 40 和 80 mg FA/kg 的最高水平。HS后，血糖、皮质醇、超氧化物歧化酶（SOD）、过氧化氢酶（CAT）、谷胱甘肽过氧化物酶（GPx）、