水生生物学报2025，Vol.49Issue(11)：59-71,13.DOI:10.3724/1000-3207.2025.2024.0151
低鱼粉饲料对克氏原螯虾生长性能、肝肠健康及肌肉品质的影响
LOW FISH MEAL DIET ON GROWTH PERFORMANCE,HEPATOPANCREAS-INTESTINAL HEALTH,AND MUSCLE QUALITY OF RED SWAMP CRAYFISH(PROCAMBARUS CLARKII)
摘要
Abstract
In order to reduce feed costs,commercial diets for Procambarus clarkii mostly use high-level plant protein to replace fish meal,resulting in diets containing less than 5%fish meal.This study evaluated the effects of low fish meal diets on the survival,growth,muscle quality,and health of P.clarkii by comparing a control diet with 10%fish meal to an experimental diet with 2%fish meal(replacing fish meal with a 1﹕1 soybean meal-rapeseed meal mixture).P.clarkii with an initial weight of(3.90±0.01)g were used as the experimental subjects,and an 8-week aquaculture experiment was conducted in an indoor circulating water aquaculture system.The results showed that low fish meal diet did not significantly effect the survival rate,growth indicators(including weight gain rate,specific growth rate,intes-tine-somatic index,hepatopancreatic index,gonadosomatic index,and condition factor),apparent digestibility,diges-tive enzyme activity,antioxidant capacity,and non-specific immunity of P.clarkii.There is no significant impact on the basic nutritional components or amino acid composition of muscles.Compared with high fish meal feed,low fish meal(2%)diet significantly increased meat yield(P<0.05),increased the muscle content of oleic acid,linoleic acid,alpha linolenic acid,eicosaenoic acid,monounsaturated fatty acids,and n-6 polyunsaturated fatty acids(P<0.05),and reduced cadmium content in the hepatopancreas(P<0.05),thus improving the nutritional quality of crayfish.In addi-tion,low fish meal diet induced morphological changes in hepatopancreas and intestinal tissues,significantly decreas-ing the relative abundance of Bacteroides vulgatus and increasing iron-reducing bacteria in the intestinal microbiota(P<0.05).Although these changes did not have a negative impact on the survival,growth,digestion,antioxidant levels,or non-specific immunity,they also indicate that low fish meal content in feed may be detrimental to the hepatopan-creas and intestinal health of P.clarkii.关键词
鱼粉/生长/消化/肌肉营养/抗氧化能力/肠道微生物/克氏原螯虾Key words
Fish meal/Growth/Digestion/Muscle nutrition/Antioxidant capacity/Gut microbiota/Procambarus clarkii分类
农业科技引用本文复制引用
滕子倩,李昊,李为,李旺,苑晶,刘昊昆,张堂林..低鱼粉饲料对克氏原螯虾生长性能、肝肠健康及肌肉品质的影响[J].水生生物学报,2025,49(11):59-71,13.基金项目
国家重点研发计划(2023YFD2400505) （2023YFD2400505）
湖北省重点研发计划(2023BBB084) （2023BBB084）
湖南省重点研发计划(2024WK2015) （2024WK2015）
黄河三角洲产业领军人才项目(DYRC20200215)资助[Supported by the National Key Research and Development Program of China(2023YFD2400505) （DYRC20200215）
Hubei Key Research and Development Program(2023BBB084) （2023BBB084）
Hunan Provincial Key Research and Development Program(2024WK2015) （2024WK2015）
Yellow River Delta Industrial Leading Talent Program(DYRC20200215)] （DYRC20200215）
