动物营养学报2017，Vol.29Issue(4)：1418-1426,9.DOI:10.3969/j.issn.1006-267x.2017.04.041
饲料脂肪水平对黄姑鱼幼鱼生长性能、肌肉组成和血浆生化指标的影响
Effects of Dietary Lipid Level on Growth Performance, Muscle Composition and Plasma Biochemical Indices of Juvenile Nibea albiflora
摘要
Abstract
This study was conducted to evaluate the effects of dietary lipid level on growth performance, mus-cle composition and plasma biochemical indices of juvenile Nibea albiflora. A total of 1200 juvenile Nibea alb-iflora with the average initial body weight of (41.7±3.1) g were randomly divided into 4 groups and fed iso-nitrogenous formulate diets containing different lipid levels [ 4. 07% ( L4 group ) , 7. 04% ( L7 group ) , 10.05% ( L10 group) and 12.97% ( L13 group) , respectively] using fish oil as the lipid source for 8 weeks. Each group had 3 replicates and each replicate fed with 100 fish. The results showed that the final average weight (FW), final average length (FL), weight gain rate (WGR), survival rate (SR), feed efficiency ( FCR) , protein efficiency ratio ( PER) , condition factor ( CF) and viserosomatic index ( VSI) of juvenile Nibea albiflora in L4 and L7 groups were significantly higher than those in L10 and L13 groups (P<0.05). The specific growth rate ( SGR) and hepatosomatic index ( HSI) of juvenile Nibea albiflora in L7 group were significantly higher than those in L10 and L13 groups (P<0.05), while no significant difference was found between L4 and L7 groups ( P>0.05) . The muscle crude protein content of juvenile Nibea albiflora in L4, L7 and L10 groups was significantly higher than that in L13 group ( P<0.05) , which showed no significant differ-ence among L4, L7 and L10 groups ( P>0.05) . The muscle crude lipid content of juvenile Nibea albiflora in L4 group was significantly lower than that in L7, L10 and L13 groups ( P<0.05) , while no significant differ-ences were found among L7, L10 and L13 groups ( P>0.05) . The muscle ash content of juvenile Nibea albi-flora in L7 group was significantly lower than that in L4, L10 and L13 groups ( P<0.05) , while no significant differences were found among L4, L10 and L13 groups ( P>0. 05 ) . The total protein ( TP ) , albumin ( ALB) , globulin ( GLB) , triacylglycerol ( TG) , high density lipoprotein ( HDL) and low density lipoprotein ( LDL) contents in plasma of juvenile Nibea albiflora in L4 and L7 groups were significantly higher than those in L10 and L13 groups ( P<0.05) , while the contents of glucose ( GLU) and cholesterol ( CHOL) and the ac-tivities of lactic dehydrogenase ( LDH) , alanine transaminase ( ALT) , aspartate transaminase ( AST) and al-kaline phosphatase ( ALP) were significantly lower than those in L10 and L13 groups ( P<0.05) . The results indicate that the optimal dietary lipid level of juvenile Nibea albiflora is 7.04% under the present experimental conditions.关键词
黄姑鱼幼鱼/饲料脂肪水平/生长性能/肌肉组成/血浆生化指标Key words
juvenile Nibea albiflora/dietary lipid level/growth performance/muscle composition/plasma biochemical indices分类
农业科技引用本文复制引用
叶坤,王秋荣,谢仰杰,王志勇,陈庆凯..饲料脂肪水平对黄姑鱼幼鱼生长性能、肌肉组成和血浆生化指标的影响[J].动物营养学报,2017,29(4):1418-1426,9.基金项目
厦门南方海洋研究中心重大项目(14GZY70NF34) （14GZY70NF34）
福建省农业高校产学合作重大项目(2014N5011) （2014N5011）
