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Effect of dietary supplementation with Bacillus subtilis on the growth, performance, immune response and antioxidant activities of the shrimp (Litopenaeus vannamei)

机译:日粮中添加枯草芽孢杆菌对虾的生长,生长,免疫反应和抗氧化活性的影响

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摘要

The objective of this study was to evaluate the effect of dietary supplementation of a probiotic bacterium, Bacillus subtilis, on the growth, immune response and antioxidant activities of shrimp (Litopenaeus vannamei). Shrimps with an average initial weight of 2.11±0.17 g were randomly assigned to four groups with three replicates. The control group was fed a basal diet, and three treated groups were fed diets supplemented with B. subtilis at doses of 1 × 104, 5 × 104 and 10 × 104 colony-forming unit (CFU) g−1 feed respectively. After 40 days of culture, 10 shrimps from each replicate were taken randomly for the determination of immune response and oxidization resistance indices. The results showed that the shrimps fed with B. subtilis at a dose of 1 × 104, 5 × 104 CFU g−1 feed showed significantly better growth than that of the control diet. The phenoloxidase activities showed a tendency to increase with an increased dose of B. subtilis in diets but there was no significant difference among the three treated groups. In addition, phenoloxidase activities were found to be significantly higher (P0.05) in the groups treated with B. subtilis than that of the control group. Shrimps treated with 5 × 104 CFU g−1 feed probiotic bacterium showed the highest lysozyme activity and it was significantly higher (P0.05) than the other groups. However, there was no significant difference in acid phosphatase and alkaline phosphatase activity across all the groups. The total antioxidant capacity, superoxide dismutase and glutathione peroxidase activities in the probiotic-treated groups were significantly increased (P0.05) as compared with the control groups. Both maleic dialdehyde concentration and superoxide anion activities in the probiotic-treated groups were significantly lower (P0.05) than those of the control. The probiotic did not affect the nitric oxide synthase and the catalase activity in any of the control and treated groups. These results indicated that the probiotic B. subtilis could significantly promote the growth rate of shrimp by increasing the immune function and antioxidant capacity. The most effective dose of B. subtilis in the diet was 5 × 104 CFU g−1 feed.
机译:这项研究的目的是评估膳食补充益生菌枯草芽孢杆菌对虾(南美白对虾)的生长,免疫反应和抗氧化活性的影响。将平均初始重量为2.11±0.17 g的虾随机分为四组,每组三份。对照组接受基础饮食,三个治疗组分别接受补充枯草芽孢杆菌的饮食,剂量分别为1×10 4 ,5×10 4 和10× 10 4 菌落形成单位(CFU)g -1 进料。培养40天后,从每个重复样本中随机抽取10只虾,以测定免疫应答和抗氧化指数。结果显示,以1×10 4 ,5×10 4 CFU g -1 饲料投喂枯草芽孢杆菌的虾表现出比对照饮食明显更好的生长。饮食中酚氧化酶活性显示出随着枯草芽孢杆菌剂量的增加而增加的趋势,但在三个治疗组之间没有显着差异。另外,枯草芽孢杆菌处理组的酚氧化酶活性明显高于对照组(P <0.05)。用5×10 4 CFU g -1 饲料益生菌处理的虾显示出最高的溶菌酶活性,并且显着高于其他组(P <0.05)。但是,所有组的酸性磷酸酶和碱性磷酸酶活性均无显着差异。与对照组相比,益生菌处理组的总抗氧化能力,超氧化物歧化酶和谷胱甘肽过氧化物酶活性显着增加(P <0.05)。益生菌处理组的马来二醛浓度和超氧阴离子活性均显着低于对照组(P <0.05)。在任何对照组和治疗组中,益生菌均不影响一氧化氮合酶和过氧化氢酶活性。这些结果表明益生菌枯草芽孢杆菌可通过提高免疫功能和抗氧化能力来显着促进虾的生长速度。日粮中枯草芽孢杆菌的最有效剂量为5×10 4 CFU g -1 饲料。

著录项

  • 来源
    《Aquaculture Research》 |2010年第11期|p.1691-1698|共8页
  • 作者单位

    Department of Biology, Life Science College of Shaoxing University, Shaoxing, China|The Key Laboratory of Molecular Animal Nutrition, Animal Science College, Zhejiang University, Ministry of Education, Hangzhou, China;

    Department of Food Quality and Safety, Zhejiang Gongshang University, Hangzhou, China;

    The Key Laboratory of Molecular Animal Nutrition, Animal Science College, Zhejiang University, Ministry of Education, Hangzhou, China;

    Department of Biology, Life Science College of Shaoxing University, Shaoxing, China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Bacillus subtilis; Litopenaeus vannamei; growth; immune response; antioxidant activities;

    机译:枯草芽孢杆菌;凡纳滨对虾;生长;免疫反应;抗氧化活性;

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