生物絮团对中华锯齿米虾生长及水质的影响  

Influence of biological floc on the growth of Neocaridina denticulate sinensis and the water quality in the culture water

作　　者：岳强[1] 李彦芹[1] 曹杰英[2] 苏文清[3] 石小彤[1] 康现江[1] 

机构地区：[1]河北大学生命科学学院,河北保定071002 [2]河北省水产技术推广站,河北石家庄050011 [3]唐山市水产技术推广站,河北唐山063000

出　　处：《河北渔业》2012年第2期3-6,共4页

摘　　要：实验以枯草芽孢杆菌和光合细菌为研究对象,研究了生物絮团对中华锯齿米虾养殖水体酸碱度、氨氮、亚硝酸氮、COD等水质指标的调节及其在促进米虾生长方面的作用。结果显示,添加了生物絮团的实验组,比对照组养殖水体的亚硝酸氮含量降低54%,COD水平降低39%,氨氮含量降低35%,pH值稳定保持在适宜的水平,中华锯齿米虾的存活率和增重率也有显著提高。结果表明,生物絮团的使用,能够有效调节水质,促进中华锯齿米虾的生长。In this experiment,biological floc consisted of Bacillus subtilis and Photosynthetic bacteria were added into culture water of Neocaridina denticulate sinensis.We determind the concentration of COD,NH4＋-N,NO2——N and pH value,and studed the effect of biological floc on promoting the growth of N.denticulate sinensis.The results showed that,in the culture water added biological floc,the content of COD,NH4＋-N and NO2——N were reduced 39%,35% and 54%,respectively,the pH value stabilized at appropriate level,and the survival and weight gain of N denticulate sinensis also increased significantly.The use of biological floc,can really regulate the culture water quality effectively,and promote the growth of cultured organisms.

关 键 词：枯草芽孢杆菌 光合细菌 生物絮团 中华锯齿米虾 

分 类 号：S963[农业科学—水产养殖]