福建农业学报2013，Vol.28Issue(7)：648-652,5.
饲料中不同蛋白质水平对花鲈幼鱼生长和饲料利用的影响
Effects of the Dietary Protein Levels on the Growth and Feed Utilization of Juvenile Lateolabrax japonicas
摘要
Abstract
To investigate the effect of the diet protein level on growth and feed utilization of juvenile Lateolabrax japonicus,five isoenergetic experimental diets containing 35.0％,37.5％,40.0％,42.5％ and 45.0％ protein were made up respectively,whose protein source was fish meal.Juvenile Lateolabrax japonicus with initial average weight of (84.81 ±0.92) g took the feeding experiments for 75 days for determination of the best protein level.The results showed that the relative weight gain rate,specific growth rate and feed conversion rate of the group of 39.85％ were much higher than those of 34.76％ and 37.54％ groups (P＜0.01),but not significantly different from the 42.34％ group (P＞0.05).Protein efficiency rate of the 39.85％ group was also higher than those of the 34.76％,42.34％ and 45.03％ groups (P＜0.05),while comparing with the 37.54％ group,no significant difference was found (P＞0.05).In this experiment,based on quadratic model regression analysis of the specific growth rate and protein efficiency rate,growth index and feed utilization rate of Lateolabrax japonicus were best while the protein content of juvenile Lateolabrax japonicus feed was 38.87 ％-41.50％.关键词
花鲈幼鱼/蛋白质/生长性能/蛋白质效率Key words
juvenile Lateolabrax japonicus/ protein/ growth performance/ protein efficiency rate分类
农业科技引用本文复制引用
林星..饲料中不同蛋白质水平对花鲈幼鱼生长和饲料利用的影响[J].福建农业学报,2013,28(7):648-652,5.基金项目
福建省科技星火计划项目(2011S0015) （2011S0015）
