摘要
在流化床生物滤器净化循环水育苗系统中,进行了集约化培育鲤鱼苗的试验,结果表明:在密度为10～15万尾/m^3的条件下培育15d,鱼苗体长达12.58±0.94mm,体重达21.10±0.4mg,成活率87％以上。实验期间,水质稳定,流化床生物滤器供水水质NH_4^(+)-N≤0.143±0.07mg/1,NO_2^(-)-N≤0.005±0.004mg/1,满足育苗水质指标要求。鱼苗平游后1～3天开食为适宜时间。
The effect of intensive rearing common carp fry were studied in fluidized bed biofilter purgative close recirculation system. The results showed the system can provide better water guality conditions, Rearing fry during, fluidized bed biofilter effluent water NH_(4)^+ N 0. 143?. 07mg/l, NO_(2)^-N 0. 005?. 004mg/l. At the common carp fry densities of 10000~15000 lar/m^(3) main relying artificial diets rearing for 15 days. Te Common carp fry can grow to 12. 58?0. 94mm in length and 21. 10?40mg in weight, the survival rate over 87%. The fry free swimming after l^3days feeding diets is in good time, switable feeding ways and water replacement rate are also immportent link the increasing of survival rate.
出处
《农业系统科学与综合研究》
CSCD
北大核心
1997年第3期236-240,共5页
System Sciemces and Comprehensive Studies In Agriculture
关键词
育苗
循环水
净化
流化床生物滤器
鱼苗
Intensive raring fry, Fluidized bed biofilter, Close recirculting system
