Effects of dietary mannan oligosaccharide on growth performance, gut morphology and stress tolerance of juvenile Pacific white shrimp, Litopenaeus vannamei |
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| Authors: | Zhang Jian Liu Yongjian Tian Lixia Yang Huijun Liang Guiying Xu Donghui |
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| Institution: | Nutrition laboratory, Institute of Aquatic Economical Animals, School of Life Science, Sun Yat-sen University, Guangzhou 510275, PR China; Lab of Traditional Chinese Medicine and Marine Drugs, School of Life Science, Sun Yat-sen University, Guangzhou 510275, PR China. |
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| Abstract: | An 8-week feeding trial was conducted to investigate the effects of dietary mannan oligosaccharide (MOS) on growth performance, gut morphology, and NH(3) stress tolerance of Pacific white shrimp Litopenaeus vannamei. Juvenile Pacific white shrimp (1080 individuals with initial weight of 2.52?±?0.01?g) were fed either control diet without MOS or one of five dietary MOS (1.0, 2.0, 4.0, 6.0 and 8.0?g?kg(-1)) diets. After the 8-week feeding trial, growth parameters, immune parameters, intestinal microvilli length and resistance against NH(3) stress were assessed. Weight gain (WG) and specific growth rate (SGR) were significantly higher (P??0.05) in all experimental groups. Compared with control group, TEM analysis revealed that 2.0, 4.0, 6.0 and 8.0?g?kg(-1) MOS supplementation could significantly increase (P?
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