A 56‐day feeding trail was conducted to evaluate the effects of taurine (Tau) supplementation on growth performance, amino acid profile and heat stress resistance capacity in juvenile Takifugu rubripes (initial body weight: 32.28 ± 0.20 g). Tiger puffer were distributed into five groups and each received one of the following diets: each diet was supplemented with 0 (T1), 5 (T2), 10 (T3), 20 (T4) or 50 (T5) g Tau/kg, respectively. Growth performances were significantly ameliorated with fed diet T3 (p < .05). The Tau content of muscle increased significantly as dietary Tau increased (p < .05). Compared to the control group, fish fed diets T4 and T5 showed significantly higher concentration of triglyceride and urea, respectively (p < .05), while taurine transporter (TauT) gene and IGF‐1 gene expression increased significantly in fish fed diets T3 and T4, respectively (p < .05). After acute heat stress, HSP70 gene expression levels were significantly greater in the livers and spleens of T. rubripes (p < .05) fed diet supplemented with Tau. Levels of complement C4 were highest in fish fed 10 g/kg Tau (p < .05). These data suggested that dietary supplemented with taurine indicated positive effects on growth performances, amino acid profile and resistance against heat stress for T. rubripes.

中文翻译：

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饲料牛磺酸会影响老虎河豚（Takifugu rubripes）的生长，氨基酸特征和抗热应激能力

进行了为期56天的喂养试验，以评估补充牛磺酸（Tau）对幼年生aki猴（初始体重：32.28±0.20 g）的生长性能，氨基酸谱和抗热应激能力的影响。老虎河豚分为五组，每组接受以下饮食之一：每种饮食补充0（T1），5（T2），10（T3），20（T4）或50（T5）g Tau / kg，分别。饲喂日粮T3显着改善了生长性能（p  <.05）。肌肉中Tau含量随着饮食中Tau含量的增加而显着增加（p  <.05）。与对照组相比，饲喂鱼的饲料T4和T5分别显示甘油三酯和尿素的浓度明显较高（p <.05），而在饲喂日粮T3和T4的鱼中，牛磺酸转运蛋白（TauT）基因和IGF-1基因表达显着增加（p  <.05）。急性热应激后，HSP70基因的表达水平在肝显著更大和脾T.红鳍东方鲀（p  <.05）进料的饮食补充有头。饲喂10 g / kg Tau的鱼中补体C4水平最高（p <  .05）。这些数据表明，补充牛磺酸的饮食表明对红三叶草的生长性能，氨基酸谱和抗热胁迫具有积极作用。