饲料中添加不同水平的核苷酸对草鱼生长性能的影响  

Effects of dietary supplementation with different levels of nucleotides on growth performance of Ctenopharyngodon idella

作　　者：李绪清 LI Xuqing(Bangbu City Guzhen County Wangzhuang Town Economic Development Service Center,Guzhen 233702,Anhui China)

机构地区：[1]安徽省蚌埠市固镇县王庄镇经济发展服务中心,安徽固镇233702

出　　处：《黑龙江水产》2024年第3期277-280,共4页Northern Chinese Fisheries

摘　　要：试验旨在研究饲料中不同水平的核苷酸(Nucleotide)对草鱼(Ctenopharyngodon idella)生长性能的影响,为核苷酸在草鱼养殖生产中的高效应用提供参考。试验选择560尾体重约为10g的健康的草鱼,按照单因素试验设计,将其均分4组,每组5个重复,每组重复28尾草鱼。对照组草鱼投喂基础饲料,核苷酸组草鱼分别投喂含有0.2%、0.4%和0.6%的核苷酸的试验饲料。投喂60 d后,检测各组草鱼的生长性能。结果显示,与对照组比较,草鱼投喂0.4%的核苷酸可以使试验末重增加(P<0.05),增重率增加17.28%(P<0.05),可以使饲料系数显著降低(P<0.05)。而核苷酸对草鱼的特定生长率、成活率、脏体比和肝体比无显著影响(P>0.05)。研究表明,适量的核苷酸可以促进草鱼生长,且核苷酸添加量为0.4%时,生长性能效果最好。The aim of this experiment was to study the effects of different levels of Nucleotide in feed on the growth performance of grass carp(Ctenopharyngodon idella),and to provide reference for the efficient application of Nucleotide in the production of grass carp breeding.A total of 560 healthy grass carp with a body weight of about 10g were selected and divided into 4 groups with 5 replicates per group and 28 grass carp per replicate according to the single-factor design.Grass carp in the control group were fed basic diet,and grass carp in the Nucleotide group were fed experimental diets containing 0.2%,0.4%and 0.6%Nucleotide,respectively.After feeding for 60 days,the growth performance of grass carp in each group was measured.The results showed that compared with the control group,grass carp fed 0.4%Nucleotide could increase the final weight(P<0.05),increase the weight gain rate by 17.28%(P<0.05),and significantly reduce the feed coefficient(P<0.05).However,Nucleotide had no significant effects on specific growth rate,survival rate,viscerosomatic index ratio and hepatosomatic index ratio of grass carp(P>0.05).The results showed that appropriate amount of Nucleotide could promote the growth of grass carp,and the growth performance was the best when the amount of Nucleotide was 0.4%.

关 键 词：核苷酸(Nucleotide) 草鱼(Ctenopharyngodon idella) 增重率 饲料系数 特定生长率 

分 类 号：S965.112[农业科学—水产养殖]