网箱养鳝模式对Cu2+吸附和鱼生产性能的影响  

Effect of Cage-culture Monopterus albus Mode on Adsorption of Cu2+ and Production Performance of Fish

作　　者：张悦 龚正银 刘浩 王雪力 巫红萍 严娜 武佳韵 温安祥 ZHANG Yue;GONG Zheng-yin;LIU Hao;WANG Xue-li;WU Hong-ping;YAN Na;WU Jia-yun;WEN An-xiang(College of Life Sciences,Sichuan Agricultural University,Ya′an Sichuan 625014)

机构地区：[1]四川农业大学生命科学学院

出　　处：《现代农业科技》2019年第15期210-211,共2页Modern Agricultural Science and Technology

基　　金：四川省“十三五”水产育种公关项目(2016NYZ0047);2017年四川省大学生创新训练计划项目

摘　　要：为探讨网箱养鳝模式下空心莲子草和麦饭石对水体中Cu^2+的吸附效应和共生体系中黄鳝、鲤鱼存活率、增重率及肌肉Cu^2+含量的影响,试验选取健康黄鳝120尾,随机分成4组,每组设置3次重复,分别放养于网箱内;鲤鱼240尾,随机分成4组,每组设置3次重复,分别放养于网箱外水泥池中饲养56d。检测空心莲子草、麦饭石、水体Cu^2+含量和黄鳝、鲤鱼的存活率、增重率及肌肉Cu^2+含量。结果表明,空心莲子草和麦饭石对水体中Cu^2+均有较强的吸附作用,水体Cu2+浓度明显降低;随水体Cu2+浓度升高,黄鳝和鲤鱼的存活率、增重率明显降低,肌肉中Cu^2+含量显著升高。In order to investigate the adsorption effects of Alternanthera philoxeroides and medical stone on Cu^2+ and the effects on survival rate,weight gain rate and muscle Cu^2+ content of Monopterus albus and Cyprinus carpio in symbiotic system under the cage-fed Monopterus albus mode,120 tails of healthy Monopterus albus were randomly divided into 4 groups with 3 repeats for each group,and 240 tails of healthy Cyprinus carpio were randomly divided into 4 groups with 3 repeats for each group.They were put in cement pond outside net cage and fed for 56 d.The contents of Cu^2+ in Alternanthera philoxeroides,medical stone and water were tested,and the survival rate,weight gain rate and muscle Cu^2+ content of Monopterus albus and Cyprinus carpio were also tested.The results showed that Alternanthera philoxeroides and medical stone had strong adsorption effects on Cu^2+ in water,and the concentration of Cu^2+ in water decreased significantly.With the increase of Cu2+ concentration in water,the survival rate and weight gain rate of Monopterus albus and Cyprinus carpio decreased significantly,and the content of Cu^2+ in muscle increased significantly.

关 键 词：黄鳝 鲤鱼 网箱养殖 空心莲子草 麦饭石 CU^2+ 

分 类 号：X52[环境科学与工程—环境工程] S964[农业科学—水产养殖]