中国农业大学学报2018，Vol.23Issue(4)：60-68,9.DOI:10.11841/j.issn.1007-4333.2018.04.08
日粮添加壳聚糖对鹅生长性能、血脂及脂代谢相关基因表达的影响
Effect of dietary chitosan on growth performance,serum lipid and the expression of genes related to lipid metabolism in geese
摘要
Abstract
The objective of this study was to investigate the effect of dietary chitosan (CTS) levels on the growth performance and mechanism of dietary CTS levels on the hepatic lipid metabolism of geese.Three hundred and sixty 14-day-old healthy Yangzhou male geese were randomly divided into five groups with 6 replicates per group and 12 geese each.Geese were respectively fed with basal diet (control group),normal diet + 250 mg/kg CTS diet (group Ⅰ),normal diet + 500 mg/kg CTS diet (group Ⅱ),normal diet + 1 000 mg/kg CTS diet (group Ⅲ) and normal diet + 2 000mg/kg CTS diet (group Ⅳ) for fifty and six days,respectively.The results showed that:1) Supplement of 250-500mg/kg CTS significantly increased ADFI and ADG and 70-day-old body weight (P＜0.05);2) Compared with the control group,serum TC and LDL concentrations significantly decreased with supplement of CTS within 250-1 000 mg/kg range (P＜0.05).Serum TG and HDL-C concentration had no significant difference among five groups;3) Supplement of 250-500 mg/kg CTS reduced ACC activity and the mRNA expression of ACC and FAS.The expression of PPAR-α was up-regulated with the increasing of CTS dose;4) The CTS dose had no significant effect on FAS and LPL activity in the liver (P＞0.05).The HL activities of 500 and 1 000 mg/kg CTS groups were significantly decreased.In conclusion,supplemental CTS increased ADFI and ADG,decreased serum TC and LDL levels,affected liver lipid metabolism enzyme activity and related genes expression.The optimal dietary of 250-500 mg/kg chitosan in diet was recommended.关键词
壳聚糖/鹅/生长性能/血脂/基因表达Key words
chitosan/goose/growth performance/serum lipid/gene expression分类
农业科技引用本文复制引用
盛东峰,赵悦,胥蕾,杨海明,王杏龙,王志跃..日粮添加壳聚糖对鹅生长性能、血脂及脂代谢相关基因表达的影响[J].中国农业大学学报,2018,23(4):60-68,9.基金项目
国家现代农业产业技术体系(CARS-42-11) （CARS-42-11）
江苏省农业三新工程项目(SXGC[2016]323) （SXGC[2016]323）
