饲料研究2024，Vol.47Issue(22)：52-58,7.DOI:10.13557/j.cnki.issn1002-2813.2024.22.010
柚果多糖对斜带石斑鱼脂肪沉积和肝脏健康的影响
Effects of pomelo fruit polysaccharide on fat deposition and liver health of Epinephelus coioides
摘要
Abstract
The experiment aimed to investigate the effects of pomelo fruit polysaccharide on reducing fat deposition and improving liver health in Epinephelus coioides.Selected Epinephelus coioides with a body weight of about 11 g,divided into five groups.There were three replicates in each group:Control group(fat content 11.06%),low-fat group(fat content 7.49%),low-fat+pomelo fruit polysaccharide group(low-fat diet+400 mg/kg pomelo fruit polysaccharide),high-fat group(fat content 15.32%)and high-fat+pomelo fruit polysaccharide group(high-fat diet+400 mg/kg pomelo fruit polysaccharide).20 fish per repeat.The pre-test period was two weeks,the formal test period was eight weeks.The results showed that the weight gain rate(WGR)and specific growth rate(SGR)of Epinephelus coioides in the low-fat group were significantly lower than those in the control group(P<0.05).The low-fat+pomelo fruit polysaccharide group and the high-fat+pomelo fruit polysaccharide group were higher than the low-fat group and the high-fat group,respectively,but without significant differences(P>0.05).Compared to the high-fat group,the whole fish and muscle crude fat content and hepatosomatic index(HSI)in the high-fat+pomelo fruit polysaccharide group were significantly reduced(P<0.05).The low-fat group and high-fat group showed liver damage,but the low-fat+pomelo fruit polysaccharide group and the high-fat+pomelo fruit polysaccharide group exhibited significant improvements in liver tissue structure damage,and the liver lipid droplet content in the high-fat+pomelo fruit polysaccharide group was significantly lower than that in the high-fat group.The high-fat+pomelo fruit polysaccharide group significantly inhibited the upregulation of inflammation and apoptosis-related genes interleukin-1β(IL-1β),interleukin-8(IL-8),caspase protease-3(caspase-3),and caspase protease-8(caspase-8).The study indicates that the addition of pomelo polysaccharide in low fat and high fat diets had no effect on the growth performance of Epinephelus coioides,but it could reduce the increase of crude fat content in whole fish and muscle and fat deposition in liver caused by high fat diet,enhance immune function and improve liver health.关键词
柚果多糖/斜带石斑鱼/肝损伤/脂肪沉积/免疫功能Key words
pomelo fruit polysaccharide/Epinephelus coioides/liver injury/fat deposition/immunologic function分类
农业科技引用本文复制引用
张潇潇,孙梓祯,邬颖欣,刘祎帆,白卫东,吴锦辉,邹翠云..柚果多糖对斜带石斑鱼脂肪沉积和肝脏健康的影响[J].饲料研究,2024,47(22):52-58,7.基金项目
广东省科技创新战略专项资金(项目编号:pdjh2022a0247) （项目编号:pdjh2022a0247）
大学生创新创业训练计划项目(项目编号:S202311347007) （项目编号:S202311347007）
广东省重点建设学科科研能力提升项目(项目编号:2022ZDJS022) （项目编号:2022ZDJS022）
广东茂名滨海新区海洋渔业产业园-现代渔业全产业链技术研究项目(项目编号:0835-220FA8102621) （项目编号:0835-220FA8102621）
