水蕹菜浮床覆盖度对淇河鲫的生长及营养品质的影响  

Effects of Ipomoea aquatica floating-bed coverage on growth and nutrient quality of Qihe crucian carp Carassius auratus

作　　者：刘晓峰 张莉[3] 祝国荣 陈宏霖 杨健 葛紫晗 李学军 LIU Xiaofeng;ZHANG Li;ZHU Guorong;CHEN Honglin;YANG Jian;GE Zihan;LI Xuejun(College of Fisheries/Engineering Lab of Henan Province for Aquatic Animal Disease Control,Henan Normal University,Xinxiang 453007,China;Institute of Urban Environment,the Chinese Academy of Sciences,Xiamen 361021,China;Institute for Quality&Safety and Standards of Agricultural Products Research,Jiangxi Academy of Agricultural Sciences,Nanchang 330200,China)

机构地区：[1]河南师范大学水产学院/水产动物疾病控制河南省工程实验室,新乡453007 [2]中国科学院城市环境研究所,厦门361021 [3]江西省农业科学院农产品质量安全与标准研究所,南昌330200

出　　处：《华中农业大学学报》2023年第1期139-145,共7页Journal of Huazhong Agricultural University

基　　金：国家级大学生创新创业项目(201310476075,201610476091);大学生创新创业项目(20170255);河南科技智库调研课题(HNKJZK-2022-19B);河南省科技厅项目(142102310476);河南省现代农业产业技术体系项目(豫农文[2022]200号)。

摘　　要：为了获得淇河鲫池塘养殖中的最佳水蕹菜浮床覆盖度,试验随机选取360尾淇河鲫,设计水蕹菜浮床覆盖度为0%(C0)、10%(C1)、20%(C2)和30%(C3)4个试验组,每组3个重复,每个重复30尾鱼,饲养90 d后,测定各试验组养殖水质、淇河鲫的生长、常规营养成分和氨基酸含量,并比较其差异。结果显示,水蕹菜浮床覆盖度仅对鱼肉品质中的甘氨酸、缬氨酸和精氨酸有显著性影响(P<0.05),3种氨基酸的最大值基本上在C1试验组,且各试验组间缬氨酸和精氨酸的含量变化与增重率变化一致。此外,与C0相比,C1、C2和C3试验组均含有较高的粗蛋白和灰分含量及较低的粗脂肪含量,其中C1试验组具有最高的粗蛋白含量和最低的粗脂肪含量。结果表明,10%水蕹菜浮床覆盖度最有利于淇河鲫的优良鱼肉品质的形成,过高的覆盖度则起相反作用。In order to obtain the best coverage of Ipomoea aquatica floating-bed in pond culture of Qihe crucian carp,Carassius auratus,a total of 360 individuals of Qihe crucian carp were randomly cultured in four groups with coverage of the I.aquatica floating-bed of 0(C0),10%(C1),20%(C2)and 30%(C3),respectively,with 3 replicates per group and 30 fish per replicate.After culture for 90 days,the aquaculture water quality,growth,general nutritional composition and amino acid contents were examined,and the differences were compared.The results showed that only the contents of three amino acids(glycine,valine and arginine)were significantly affected by I.aquatica floating-bed coverage(P<0.05),with the maximum value mostly in group C1,followed by the control.In addition,the changes of valine and arginine contents were consistent with that of weight gain rate among the four treatments.Moreover,compared with C0,the crude protein and ash contents of the three treatments(C1-C3)were higher,and the crude lipid content was lower,among which 10%treatment(C1)exhibited the highest crude protein content and lowest crude lipid content.Therefore,we suggest that 10%I.aquatica floating-bed coverage is most beneficial to the excellent quality of Qihe crucian carp,but too high coverage would have opposite effect.

关 键 词：水蕹菜 覆盖度 淇河鲫 营养品质 健康养殖 高密度养殖 

分 类 号：S964.3[农业科学—水产养殖]