回转式凡纳滨对虾温室集约化养殖池氨化菌与硝化菌数演变状况

Research of the quantity of ammonifying bacteria and nitrifying bacteria in the pond of the rotary warm-indoor intensive Litopenaeus vannamei Boone

研究了回转式凡纳滨对虾温室集约化养殖池中氨化菌与硝化菌的演变状况。在回转式凡纳滨对虾温室集约化养殖试验中,养殖全过程不换水、不用药,利用净水网草片、复合微生物制剂、水循环与水生植物净化水质,适时排污,使养殖水体的微生物指标与水化学指标有效控制在虾生长合适范围内。试验期间,248号池水中主要微生物指标平均值如下:氨化细菌为1080000±2411556 cfu/mL,亚硝化细菌898±1124cfu/mL,硝化细菌为1700±759 cfu/L;250号池水中主要微生物指标平均值如下:氨化细菌为881000±1793815 cfu/mL,亚硝化细菌1306±1550 cfu/mL,硝化细菌为2250±2047 cfu/L。同时,实验表明,利用净水草网片能取得良好的净化水质的效果和具有抗不利环境冲击的能力。利用这种养殖模式和相应的管理,养殖用水得到有效的控制,养殖效果良好。

The research studied the change of the quantity of ammonifying bacterium, nitrifying bacterium and nitrating bacterium in the pond of the rotary warm-indoor intensive Penaeus vannamei. During the study, the man-made float grass, the complex microorgan- ism preparation, water cycle and water plant were used to control the water quality without water exchange and medicine using, and discharged timely to make both the microorganism index and chemical index in a right range for shrimp growth. During the study, the average values of the main microorganism index of the pond No. 248 are 1080000 2411556 cfu/ml, 898 1124 cfu/ml and 1700 759 efu/ 1 for ammonifylng bacteria, nitriting bacteria and nitrifying bacterium, respectively; the average values of the pond No. 250 are 881000 1793815 cfu/ml, 1306 1550 cfu/ml and 2250 2047 cfu/l for ammonifying bacteria, nitrite bacteria and nitrifying bacterium, respectively. Moreover, there is a significant effect on water purification and the ability on resisting the adverse condition by using man-made water plant. By this culture mode and the relevant administration, the water quality was effectively controlled, and got a good effect.