Abstract：A bacterium with highly effective water purification named as Bt-01 has been screened out from aquaculture area in Hainan province and was identified as Bacillus thuringiensis by colonial morphology , macro-morphology , biochemical characteristics and 16S rDNA .The safety of Bt-01 was studied by intraperitoneal injection ,and the removal efficiency of COD ,nitrite nitrogen and ammonia nitrogen by Bt-01 were investigated in tilapia culturing water .The results showed that the survival rate of 100% was observed in the tilapia injected intraperitonally with 200μL bacterial suspension and then cultured for 30 d . The removal efficiency of nitrite nitrogen was found to be the maximum value of 98 .03% in the water for 12 h ,and 59 .10% for 31 h .The maximal COD removal efficiency of 51 .06% was found in the culturing tilapia water for 23 .5 h .The findings reveal that Bt-01 shows highly effective removal of COD ,nitrite nitrogen and ammonia nitrogen in aquaculture water and would be popular in aquaculture industry .
收稿日期: 2014-04-25
引用本文:
徐霞旭,周永灿,郑兴,朱经海,谢珍玉,王世锋,郭伟良. 一株高效水质改良菌的筛选鉴定及其作用效果研究[J]. 水产科学, 2014, (4): 231-236.
XU Xia-xu,ZHOU Yong-can,ZHENG Xing,ZHU Jing-hai,XIE Zhen-yu,WANG Shi-feng,GUO Wei-liang. Screening,Identification and Effect of a High Water Purification Bacterium. Fisheries Science, 2014, (4): 231-236.
