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Beneficial effects of <Emphasis Type="Italic">Bacillus licheniformis</Emphasis> on the intestinal microflora and immunity of the white shrimp, <Emphasis Type="Italic">Litopenaeus vannamei</Emphasis>
Authors:Ke Li  Tianling Zheng  Yun Tian  Feng Xi  Jianjun Yuan  Guozheng Zhang  Huasheng Hong
Institution:(1) MOE Key Laboratory for Cell Biology and Tumor Cell Engineering, School of Life Sciences, Xiamen University, Xiamen , 361005, China;(2) State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen, 361005, China;(3) Department of Biology, Quanzhou Normal College, Quanzhou, 362000, China
Abstract:When Bacillus licheniformis was administered to the white shrimp, Litopenaeus vannamei, although the total bacterial counts in the intestinal tract of the shrimp remained constant, Vibrio numbers significantly decreased (P < 0.05). Haemocyte counts together with phenoloxidase and superoxide dismutase activities of the shrimp were significantly higher (P < 0.05) in treatments than in the control. Thus, administration of B. licheniformis can improve the white shrimp's intestinal microflora and its immune ability.
Keywords:Bacillus licheniformis  Immunity            Litopenaeus vannamei            Probiotics
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