饲料中添加酵母培养物对美洲鳗鲡幼鱼生长性能及肠道健康的影响  

Effects of yeast culture on growth performance and intestinal health of American eel(Anguilla rostrata)juveniles

作　　者：张蕉霖 ZHANG Jiao-lin

机构地区：[1]福建天马科技集团股份有限公司,福建福清350308

出　　处：《饲料研究》2024年第19期65-69,共5页Feed Research

基　　金：福建省科技计划农业区域发展项目(项目编号:2022N3002)。

摘　　要：试验旨在研究酵母培养物在美洲鳗鲡(Anguilla rostrata)幼鱼饲料中的添加效果。试验选用初重为(32.68±2.64)g的美洲鳗鲡幼鱼,随机分为2个组,每组3个重复,每个重复16274尾鱼,CON组投喂基础饲料,YC组投喂含有0.15%酵母培养物的饲料。试验期90 d。结果显示,与对照组相比,YC组对美洲鳗鲡幼鱼生长性能和肠道消化酶活性无显著影响(P>0.05),YC组可显著降低血清二胺氧化酶活性和D-乳酸水平(P<0.05),明显改变了肠道菌群组成,提高肠道有益菌群相对丰度,降低潜在致病菌相对丰度。研究表明,饲料中添加0.15%酵母培养物未提高美洲鳗鲡幼鱼的生长性能,但明显改善了肠道通透性及肠道菌群组成。The aim of this experiment was to study the effect of yeast culture on the feed of Anguilla rostrata.Juvenile Anguilla rostrata with an initial weight of(32.68±2.64)g were randomly divided into two groups with three replicates per group and 16274 fish per replicate.The CON group was fed a basal diet and the YC group was fed a diet containing 0.15%yeast culture.The experiment lasted for 90 days.The results showed that compared with the control group,the growth performance and intestinal digestive enzyme activities of Anguilla rostrata in YC group had no significant effects(P>0.05),while the serum diamine oxidase activity and D-lactic acid level in YC group were significantly decreased(P<0.05),which significantly changed the composition of intestinal flora,increased the relative abundance of intestinal beneficial flora,and decreased the relative abundance of potential pathogenic bacteria.The results show that 0.15%yeast culture can't improve the growth performance of Anguilla rostrata,but significantly improve the intestinal permeability and intestinal flora composition.

关 键 词：酵母培养物 美洲鳗鲡 肠道健康 生长性能 

分 类 号：S963[农业科学—水产养殖]