七彩神仙鱼在循环水工厂化养殖模式下的水质变化情况  

Fluctuation of water quality in a recirculating aquaculture system of Symphysodon aequifasciatus

作　　者：英娜 王元[1] 秦搏[1] 吴艳庆 卢志斌 房文红[1] Ying Na;Wang Yuan;Qin Bo;Wu Yanqing;Lu Zhibin;Fang Wenhong(East China Sea Fisheries Research Institute,China Academy of Fishery Sciences,Shanghai 200090,China;College of Animal Science and Technology,Yangzhou University,Yangzhou 225009,China)

机构地区：[1]中国水产科学研究院东海水产研究所,上海200090 [2]扬州大学动物科技学院,江苏扬州225009

出　　处：《水产养殖》2020年第5期23-26,共4页Journal of Aquaculture

基　　金：上海市科技兴农重点攻关项目(沪农科创字(2018)第1-8号)。

摘　　要：本研究构建了一种简单的七彩神仙鱼循环水养殖系统,记录并分析了养殖60 d内水质的变化情况。统计数据表明,氨氮刚入新池时呈现先升后降的趋势,最高数值可达0.92 mg/L,随后慢慢降低至零,因倒池出现波动,随后趋于稳定,保持在0.1 mg/L以下;亚硝酸盐的开始数值为0,随着氨氮指标降低而逐渐升高至1.132 mg/L,而后开始缓慢下降,数值同样会因倒池出现波动,但最终趋于零值;总体pH值变化范围是7.8~8.3,为适用于鱼体生长的的弱碱性水质;同时,日摄食量的变化趋势也反应出七彩神仙鱼在此循环养殖系统中生长较好。In this study,a simple recirculating aquaculture system(RAS)of Symphysodon aequifasciatus was build and the fluctuation of water quality was measured in continual 60 days.Statistics indicated that the concentration of ammonia nitrogen(NH4-N)and nitrite nitrogen(NO2-N)increased first and then descend and both were disturbed by change of the water and space.But they fluctuated in different range and the latter was later than the former.The pH value varied in the range of 7.8-8.3.The daily food consumption had a moderate and undulatory increase,which reflected a well-growth of fish.

关 键 词：七彩神仙鱼 循环水养殖系统 氨氮 亚硝酸盐 PH值 日摄食量 

分 类 号：S962[农业科学—水产养殖]