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Effects of dietary chitosan oligosaccharides and Bacillus coagulans on the growth, innate immunity and resistance of koi (Cyprinus carpio koi)

文献类型： 外文期刊

作者： Lin, Shimei 1 ; Mao, Shuhong 1 ; Guan, Yong 1 ; Luo, Lin 3 ; Luo, Li 1 ; Pan, Yu 1 ;

作者机构： 1.Southwest Univ, Coll Anim Sci & Technol, Chongqing 400716, Peoples R China

2.Southwest Univ, Key Lab Freshwater Fish Resources & Reprod Dev, Minist Educ, Chongqing 400716, Peoples R China

3.Beijing Fisheries Res Inst, Beijing 100068, Peoples R China

关键词： Cyprinus carpi koi;Probiotic;Prebiotic;Growth;Immunity

期刊名称：AQUACULTURE （ 影响因子：4.242； 五年影响因子：4.723 ）

ISSN： 0044-8486

年卷期： 2012 年 342 卷

页码：

收录情况： SCI

摘要： The effects of oral administration of chitosan oligosaccharides (COS) and Bacillus coagulans, single or combined, on the growth performance, immunity and disease resistance of Cyprinus carpi koi were investigated. The koi (24.9 +/- 0.52 g) were divided into 4 groups and each group was fed with diets supplemented with or without immunostimulant for 8 weeks. After 8 weeks of feeding trial, five koi per tank were sampled for immunity determination, ten koi per tank were challenged by Aeromonas veronii. The results showed that the koi fed with diets supplemented with a combination of the COS and B. coagulans had the highest final weight, specific growth rate (SGR), total leukocyte count (WBC), respiratory burst activity, phagocytic activity, lysozyme activity, SOD activity of koi and disease resistance to A. veronii (P<0.05), followed by groups fed with diets with B. coagulans and COS, and the lowest in koi fed with the control diet. However, there were no significant differences (P<0.05) in these growth index and immune parameters of koi and resistance to A. veronii between dietary B. coagulans and dietary COS. Under the experimental conditions, dietary B. coagulans and COS had a synergistic effect on enhancing immunity and disease resistance of koi (P<0.05). (C) 2012 Elsevier B.V. All rights reserved.

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