动物营养学报2018，Vol.30Issue(2)：734-742,9.DOI:10.3969/j.issn.1006-267x.2018.02.039
低聚木糖对花鲈幼鱼生长性能、血清生化和免疫指标及肠道菌群组成的影响
Effects of Xylooligosaccharide on Growth Performance, Serum Biochemical and Immune Indices and Intestinal Microflora Composition of Juvenile Japanese Seabass (Lateolabrax japonicus)
摘要
Abstract
This study was conducted to determine the effects of xylooligosaccharide (XOS) on growth performance,serum biochemical and immune indices and intestinal microflora composition of juvenile Japanese seabass (Lateolabraxjaponicus).A total of 360 juvenile Japanese seabass were randomly assigned to 6 groups with 3 replicates per group and 20 fish per replicate.Fish in the 6 groups were fed the basal diets supplemented with 0 (control group),200 (D200 group),400 (D400 group),600 (D600 group),800 (D800 group) and 1 000 mg/kg XOS (D1000 group),respectively.The experiment lasted for 45 days.The results showed as follows:1) compared with the control group,the weight gain rate (WGR) and specific growth rate (SGR) of D200,D400 and D600 groups were increased (P＞0.05),but the WGR and SGR of D800 (P＞0.05) and D1000 groups (P＜0.05) were decreased.2) Compared with the control group,the serum total protein content of D200,D400,D600,D800 and D1000 groups was significantly increased (P＜0.05),the serum high-density lipoprotein cholesterol content of D400 and D800 groups was significantly increased (P＜0.05),the serum total cholesterol content of D200 group was significantly decreased (P＜0.05).3) Compared with the control group,the serum superoxide dismutase activity of D400,D600,D800 and D1000 groups was significantly decreased (P＜0.05),the serum peroxidase activity of D200 and D400 groups was significantly decreased (P＜0.05),the serum lysozyme activity of D400 and D500 groups was significantly increased (P＜0.05),the serum malondialdehyde content of D200 group was decreased (P＞0.05).4) Compared with the control group,the intestinal Salmonella number of D200,D400,D600,D800 and D1000 groups was significantly decreased (P＜0.05),the intestinal Escherichia coli number of D200,D400 and D1000 groups was significantly decreased (P＜0.05),the intestinal Bifidobacterium number of D200,D400 and D600 groups was significantly increased (P＜0.05).In conclusion,comprehensive all the experimental indices,diet supplemented with 350 to 560 mg/kg XOS has best effects on growth performance,immune function and intestinal health of juvenile Japanese seabass.关键词
花鲈/生长性能/低聚木糖/非特异性免疫/肠道菌群Key words
Lateolabrax japonicas/growth performance/xylooligosaccharide/non-specific immune/intestinal microflora分类
农业科技引用本文复制引用
胡晓伟,上官静波,黎中宝,杨敏,徐安乐..低聚木糖对花鲈幼鱼生长性能、血清生化和免疫指标及肠道菌群组成的影响[J].动物营养学报,2018,30(2):734-742,9.基金项目
福建省科技重点项目(2015N0010) （2015N0010）
厦门市科技项目(3502Z20143017) （3502Z20143017）
