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首页> 外文期刊>Fish & Shellfish Immunology >Effect of temperature and short chain fructooligosaccharides supplementation on the hepatic oxidative status and immune response of turbot (Scophthalmus maximus)
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Effect of temperature and short chain fructooligosaccharides supplementation on the hepatic oxidative status and immune response of turbot (Scophthalmus maximus)

机译：温度和短链低聚果糖补充对大菱turbo肝脏氧化状态和免疫反应的影响

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摘要

In this study the effect of diet supplementation with different levels of short-chain fructooligosaccharides (scFOS) on the hepatic oxidative status, hematology and innate immune parameters was evaluated in turbot reared at 15 degrees C and 20 degrees C. Four practical diets containing half of the protein provided by plant ingredients and the other half by fish meal were supplemented with scFOS at 0%, 0.5%, 1.0% and 2.0% and fed to turbot juveniles for 9 weeks. Independently of the rearing temperature, diet with 1% scFOS increased the haematocrit (Ht) while 2% scFOS augmented the mean corpuscular haemoglobin concentration (MCHC). Mean corpuscular volume (MCV), mean corpuscular haemoglobin (MCH), white blood cells (%) and lysozyme were higher in fish reared at 15 degrees C, whereas red blood cells and neutrophil numbers increased in fish reared at 20 degrees C. Catalase (CAT) and glutathione peroxidase (GPX) activities were affected by rearing temperature being lower in fish reared at 20 degrees C. Compared to the control diet, at 15 degrees C, turbot fed 0.5 or 1% scFOS presented lower activities of CAT and glutathione reductase (GR). At 20 degrees C turbot fed the 2% scFOS diet presented lower activities of CAT and GPX. Lipid peroxidation (LPO) and glucose 6-phosphate dehydrogenase (G6PDH) activity were not affected by temperature nor dietary prebiotic incorporation. Results of this study suggest scFOS has no effect on innate immunology or hematology. High temperature (20 degrees C) does not induce turbot oxidative stress, but the recommended dietary scFOS incorporation level for counteracting oxidative stress may differ with other rearing temperature. (C) 2014 Elsevier Ltd. All rights reserved.
机译：在这项研究中，在15摄氏度和20摄氏度饲养的大菱turbo中评估了日粮添加不同水平的短链低聚果糖（scFOS）对肝脏氧化状态，血液学和先天免疫参数的影响。四种实际饮食中，一半由植物成分提供的蛋白质和另一半由鱼粉提供的蛋白质分别以0％，0.5％，1.0％和2.0％的scFOS进行补充，并喂给大菱turbo幼体9周。与饲养温度无关，含1％scFOS的饮食会增加血细胞比容（Ht），而2％scFOS会增加平均红细胞血红蛋白浓度（MCHC）。在15摄氏度饲养的鱼类中，平均血球体积（MCV），平均血红蛋白（MCH），白细胞（％）和溶菌酶较高，而在20摄氏度饲养的鱼中，红细胞和中性粒细胞数目增加。 CAT和谷胱甘肽过氧化物酶（GPX）的活性受20摄氏度饲养的鱼的饲养温度较低的影响。与对照饮食相比，在15摄氏度下，饲喂0.5或1％scFOS的大菱t表现出CAT和谷胱甘肽还原酶的较低活性（GR）。在20摄氏度时，用2％scFOS饲料喂养的大菱t表现出较低的CAT和GPX活性。脂质过氧化（LPO）和6-磷酸葡萄糖脱氢酶（G6PDH）的活性不受温度或饮食中益生元掺入的影响。这项研究的结果表明scFOS对先天免疫学或血液学没有影响。高温（20摄氏度）不会诱发菱turbo氧化应激，但为抵消氧化应激而建议的膳食scFOS掺入水平可能与其他饲养温度不同。 （C）2014 Elsevier Ltd.保留所有权利。

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