动物营养学报2016，Vol.28Issue(11)：3679-3686,8.DOI:10.3969/j.issn.1006-267x.2016.11.038
玉屏风多糖对草鱼生长性能、免疫器官指数和肝胰脏非特异性免疫指标的影响
Effects of Yupingfeng Polysaccharides on Growth Performance, Immune Organ Indexes and Hepatopancreas Non-Specific Immune Indexes of Grass Carp (Ctenopharyngodon idellus)
摘要
Abstract
This experiment was designed to investigate the effects of Yupingfeng polysaccharides on growth per⁃formance, immune organ indexes and hepatopancreas non⁃specific immune indexes of grass carp ( Ctenopha⁃ryngodon idellus) , thus providing a theoretical basis for Yupingfeng polysaccharide used in the aquaculture. A total of 750 healthy grass carp with similar weight body weight [(74.50±2.50) g] were randomly assigned to 5 groups with 3 replicates per group and 50 fish per replicate. The first group ( groupⅠ) was the control group and fed a basal diet, and the remaining four groups ( groupsⅡ,Ⅲ,ⅣandⅤ) were experimental groups and fed experimental diets supplementing 0.8, 1.2, 1.6 and 2.0 g/kg Yupingfeng polysaccharide based on the basal diet, respectively. The adaptation period lasted for 1 week and the formal period lasted for 8 weeks. The results showed that the weight gain rate ( WGR) and specific growth rate ( SGR) in experimental groups was higher than that in control group, and the differences were significant between groups Ⅳ and Ⅴ and control group ( P<0.05);the feed conversion ratio ( FCR) in experimental groups was lower than that in control group, and the difference was significant between groups Ⅳ and Ⅴ and control group ( P<0.05) . The head kidney index and spleen index in experimental groups were higher than those in control group, and the head kidney index in group Ⅳand spleen index in groupsⅣandⅤwere significantly higher than those in control group ( P<0.05) . The hepatopancreas nitrogen monoxide ( NO) content in experimental groups were lower than those in control group, but the difference was not significant (P>0.05). The activities of superoxide dismutase (SOD) and catalase ( CAT ) in hepatopancreas in experimental groups were higher than those in control group, and the differences were significant between group Ⅳ and control group ( P<0.05) . The hepatopancreas malondialde⁃hyde ( MDA) content in experimental groups were lower than those in control group, and the difference was significant between group Ⅳ and control group (P<0.05). On the whole, supplementation of 1.6 g/kg Yup⁃ingfeng polysaccharide in the diet can improve the growth performance and immunity of grass carp, and obtain a better feeding effect.关键词
玉屏风多糖/草鱼/生长性能/免疫指标Key words
Yupingfeng polysaccharide/grass carp(Ctenopharyngodon idellus)/growth performance/im-mune indexes分类
农业科技引用本文复制引用
王志敬,刘明珠,于辉,尹福泉,杜殷炜,汤弘勇,石琳..玉屏风多糖对草鱼生长性能、免疫器官指数和肝胰脏非特异性免疫指标的影响[J].动物营养学报,2016,28(11):3679-3686,8.基金项目
玉屏风多糖对草鱼生长性能影响及其调控机理研究 （）
