摘要： 旨在研究膨化饲料中豆粕替代鱼粉对建鲤生长、体成分和消化吸收功能的影响.选取始体重为(240.2±5.7) g的健康建鲤720尾,随机分为4个处理,每个处理3个重复,每个重复60尾鱼.4个处理分别是饲料中豆粕替代0(对照),25%,50%,100%的鱼粉,试验期56 d.结果表明,与对照组相比,豆粕替代25%和50%鱼粉对增重、增重率和特异性生长率无显著影响(P>0.05);替代100%鱼粉显著降低了增重、增重率和特异性生长率(P<0.05),显著降低了鱼体粗蛋白含量(P<0.05)和肠体指数(P<0.05),显著降低了肠道胰蛋白酶、脂肪酶、γ-谷氨酰转移酶和碱性磷酸酶的活性(P<0.05).综上可见,在本试验条件下,豆粕替代膨化饲料中50%的鱼粉对建鲤生长性能、体成分和消化吸收功能无显著影响.

关键词: 建鲤, 豆粕, 生长, 体成分, 消化吸收

Abstract: The present study was performed to investigate the effect of replacing fish meal with soybean meal on growth,body composition and digestive ability of Jian carp.A total of 720 Jian carp with average initial weight of(240.2±5.7) g were randomly allocated four groups of each three replicates.Four isonitrogenous and isoenergetic practical extruded diets were formulated by replacing 0,25%,50%,and 100% fish meal with soybean meal.The results showed that there was no significant difference in the percent weight gain(PWG) and the specific growth rate(SGR) in fish fed diets by replacing 0,25%,and 50% fish meal with soybean meal.(P> 0.05).Fish fed the diet by replacing 100% fish meal with soybean meal had significantly lower PWG and SGR than the 0 group(P<0.05).The crude protein in whole body were significantly lower when the replacement ratio of fish meal by soybean meal was 100%(P<0.05).Fish fed the diet by replacing 100% fish meal with soybean meal had significantly lower,γ-GT and AKP than the 0 group(P<0.05).These results indicated there was no significant difference on growth performance of juvenile Jian carp at body weight 200-800 g when soybean meal could be used by replacing 50% of fish meal in practical extruded diets.

Key words: Jian carp, Soybean meal, Growth, Body composition, Digestive ability

中图分类号: 

• S963