摘要
为研发大口黑鲈(Micropterus salmoides)优质配合饲料,以初始体质量(50.78±1.15)g的大口黑鲈幼鱼为研究对象,设置对照组鱼粉含量为30%,在对照组的基础上使用豆粕分别替代25%、50%和75%鱼粉记为D25、D50和D75处理组,并在3种豆粕替代基础上添加0.05%丁酸梭菌设计D25+C、D50+C和D75+C3个处理组,共计7种试验饲料,进行为期8周的饲喂试验,研究豆粕替代鱼粉并添加益生菌后鱼体的生长和抗氧化能力差异。结果显示:豆粕替代25%鱼粉时大口黑鲈的生长性能、体组成和抗氧化能力均未出现显著差异。但替代比例达到50%后大口黑鲈的增重率和特定增长率均显著降低,饲料系数显著升高,肝脏和血清总抗氧化能力、活性氧和超氧化物歧化酶均发生显著变化。然而,在替代50%鱼粉的基础上添加丁酸梭菌组与对照相比,增重率、特定增长率、活性氧和超氧化物歧化酶均无显著差异。当替代水平达到75%时添加丁酸梭菌与未添加组相比大口黑鲈的生长性能和抗氧化性能得到改善,但仍显著低于对照组。结果表明添加0.05%的丁酸梭菌可改善豆粕替代鱼粉比例达到50%对大口黑鲈生长性能和抗氧化能力造成的负面影响。
In order to develop a high-quality formula feed for largemouth bass(Micropterus salmoi⁃des),this study replaced fish meal with soybean meal and added probiotics to investigate the growth and antioxidant tolerance of fish.Juvenile largemouth bass with initial body weight(50.78±1.15)g were used as the research object.The fish meal content of the control group was set to 30%,and on the basis of the control group,the fish meal content of the treatment group was replaced with 25%,50%and 75%soybean meal,respectively,which were recorded as D25,D50 and D75 treatment groups.In addition,0.05%Clostridium butyricum was added to 3 treatment groups D25+C,D50+C and D75+C.After 8 weeks of experiment,the growth performance,feed utilization,body composition and antioxidant performance of largemouth bass were analyzed.The results showed that when 25%fish meal was replaced by soybean meal,there were no significant differences in growth performance,body composition and antioxidant capacity of largemouth bass(P>0.05).But weight gain rate(WGR)and specific growth rate(SGR)decreased significantly(P<0.05),and feed conversion ratio(FCR)increased significantly when the replacement level of soybean meal reached 50%(P<0.05).The oxygen species(ROS),total antioxidant capacity(T-AOC)and superoxide dismutase(SOD)in liver and serum were also significantly changed(P<0.05).However,there were no significant differences in WGR,SGR,ROS,T-AOC and SOD between the group supplemented with C.butyricum on the basis of replacing 50%fish meal and the control group.When the replacement level reached 75%,the growth performance and antioxidant performance of fish were improved by adding C.butyricum,but still significantly lower than that of the control group.To sum up,the addition of 0.05%C.butyricum could improve the negative effects of 50%substitution of soybean meal for fish meal on the growth performance and antioxidant capacity of largemouth bass.
作者
矣林圆
桂聪
刘婧文
杨慧君
莫爱杰
翟昱翔
袁勇超
YI Linyuan;GUI Cong;LIU Jingwen;YANG Huijun;MO Aijie;ZHAI Yuxiang;YUAN Yongchao(College of Fisheries,Huazhong Agricultural University/Key Lab of Freshwater Animal Breeding,Ministry of Agriculture and Rural Affairs/Key Lab of Agricultural Animal Genetics,Breeding and Reproduction of Ministry of Education,Wuhan 430070,China;Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt,Ministry of Education/Hubei Province Aquatic Animal Disease Control Engineering Technology Research Center,Wuhan 430070,China)
出处
《华中农业大学学报》
CAS
CSCD
北大核心
2024年第1期176-184,共9页
Journal of Huazhong Agricultural University
基金
国家自然科学基金项目(32273167)
湖北省大学生创新创业训练计划项目(S202210504191)。
关键词
大口黑鲈
配合饲料
饲料添加剂
丁酸梭菌
豆粕替代
生长性能
抗氧化性能
Micropterus salmoides
formula feed
feed additive
Clostridium butyricum
soybean meal replacement
growth performance
oxidation resistance
