动物营养学报2017，Vol.29Issue(9)：3392-3402,11.DOI:10.3969/j.issn.1006-267x.2017.09.045
高植物蛋白质饲料中添加丁酸钠对大菱鲆幼鱼生长性能、营养物质表观消化率及肝脏抗氧化功能的影响
Effects of Adding Different Levels of Sodium Butyrate in High Plant Protein Diets on Growth Performance, Nutrient Apparent Digestibility Coefficients and Liver Antioxidant Function of Juvenile Turbot (Scophthalmus maximus L.)
摘要
Abstract
In this study,a feeding trial was conducted to evaluate the effects of adding different levels of sodium butyrate in high plant protein diets on growth performance,nutrient apparent digestibility coefficients and liver antioxidant function of juvenile turbot (Scophthalmus maximus L.),and to explore the feasible method for improving substitution of fish meal by plant protein.Using fish meal,soybean meal,corn gluten meal,vital gluten,peanut meal and beer yeast as protein sources,fish oil,coconut oil and soybean lecithin as lipid sources,and wheat meal as carbohydrate source,five isonitrogen and isocaloric experimental diets were formulated.Among them,the basal diet formulated with 60% fish meal was set as the positive control group (FM group),the substituted diet which used mixed plant protein sources to replace 50% fish meal was set as the negative control group (CON group),and the other three diets which were supplemented with 0.15% (D1 group),0.30% (D2 group) and 0.60% (D3 group) sodium butyrate into the substituted diet,respectively,were set as the experimental groups.Each diet was assigned to three replicates of 30 juvenile turbot with an initial body weight of (13.00±0.01) g for 58 days in an indoor aquaculture system.The results showed as follows: 1) with the increase of sodium butyrate supplemental level,the weight gain rate (WGR),specific growth rate (SGR) and feed efficiency (FE) were increased firstly and decreased subsequently.The WGR,SGR and FE in FM,D1 and D2 groups were significantly higher than those in CON group (P<0.05),while no significant difference in feed intake (FI) was observed among groups (P>0.05).For the viscerosomatic index (VSI),compared with FM group,the D2 group had no significant difference (P>0.05),but the other group were significantly decreased (P<0.05).No significant differences in whole fish moisture,crude protein and crude lipid contents were observed among groups (P>0.05).2) The apparent digestibility coefficient of dry matter in D1 group was significantly higher than that in CON group (P<0.05),while it showed no significant difference between the D1 and FM groups (P>0.05).For the apparent digestibility coefficient of protein,D1 group was significantly higher than that in CON,D2 and D3 groups (P<0.05),but no significant differences were showed between the D1 and FM groups (P>0.05).No significant difference in the apparent digestibility coefficients of dry matter and protein were observed between the D2 and D3 groups (P>0.05).3) Compared with the CON group,liver total antioxidant capacity (T-AOC) and catalase (CAT) activity in D2 group were significantly increased (P<0.05),but the liver malondialdehyde (MDA) content was significantly decreased (P<0.05).In conclusion,under this experimental condition,adding 0.15% sodium butyrate in the high plant protein diets can improve the growth performance,nutrient apparent digestibility coefficients and liver antioxidant function of juvenile turbot,but excessive adding sodium butyrate will decrease the growth performance of juvenile turbot.关键词
丁酸钠/大菱鲆幼鱼/生长性能/表观消化率/抗氧化能力Key words
sodium butyrate/juvenile turbot/growth performance/apparent digestibility/antioxidant ability分类
农业科技引用本文复制引用
魏朝青,周慧慧,王旋,麦康森,徐玮,何艮..高植物蛋白质饲料中添加丁酸钠对大菱鲆幼鱼生长性能、营养物质表观消化率及肝脏抗氧化功能的影响[J].动物营养学报,2017,29(9):3392-3402,11.基金项目
替代渔用饲料中鱼粉的新蛋白源开发利用技术(201303053) （201303053）
国家自然科学基金面上项目(31572627) （31572627）
