| 放养密度和微生态制剂对施氏鲟养殖水质的影响 |
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| 引用本文： | 王秋实,张镜群.放养密度和微生态制剂对施氏鲟养殖水质的影响[J].水产学杂志,2017(5):39-42. |
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| 作者姓名： | 王秋实 张镜群 |
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| 作者单位： | 1. 中国水产科学研究院黑龙江水产研究所,黑龙江 哈尔滨,150070;2. 西藏自治区农牧科学院水产科学研究所,西藏 拉萨,850032 |
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| 基金项目： | 黑龙江水产研究所基本科研专项(201111)，黑龙江省重点科技攻关指导项目(GZ10A101) |
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| 摘 要： | 将初始体质量(54.86±10.19)g的施氏鲟Acipenser schrenckii饲养在面积16m~2(4m×4m)、水深1.7~1.9m的陆基围隔中,密度分别为2 000尾/667m~2、3 000尾/667m~2、4 000尾/667m~2和5 000尾/667m~2,每个密度组均设3个平行,常规饲养,混合泼洒光合细菌、枯草芽孢杆菌和乳酸菌,第一次泼洒量为光合细菌50m L、枯草芽孢杆菌50g和乳酸菌50g,之后每5d泼洒第一次量的1/2,研究微生态制剂对静水土养殖池塘水质的影响。结果显示:水体中溶解氧量随养殖密度的增加逐渐降低(P0.05),氨氮、亚硝酸盐浓度随养殖密度的增加逐渐升高(P0.05)。在使用微孔增氧的条件下,泼洒微生态制剂对溶解氧量和氨氮浓度的影响不显著(P0.05),但显著降低了水体亚硝酸盐浓度(P0.05),显著增加了浮游动物生物量(P0.05)。
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| 关 键 词： | 施氏鲟 池塘养殖 微生态制剂 水质 |
Effects of Probiotics on Water Quality in Amur Sturgeon Acipenser schrenckii Culture Exposures at Different Stocking Densities |
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| WANG Qiu-shi,ZHANG Jing-qun.Effects of Probiotics on Water Quality in Amur Sturgeon Acipenser schrenckii Culture Exposures at Different Stocking Densities[J].Chinese Journal of Fisheries,2017(5):39-42. |
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| Authors: | WANG Qiu-shi ZHANG Jing-qun |
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| Abstract: | Amur sturgeon Acipenser schrenckii with initial body weight of (54.86 ± 10.19) g were reared in a 16 m2 (4 m × 4 m) and depth of 1.7 m ~ 1.9 m exposure at stocking density of 2000 ind./667m2, 3000 ind./667m2, 4000 ind./667m2 and 5000 ind./667m2,in which probiotics was added into at a dose of photosynthetic bacteria(50 mL)+ Bacillus subtilis(50 g)+ lactobacillus(50 g), and half of the first dose 5 days since then, to evaluate effects of the probiotics on the water quality in a culture pond. The results showed that there were decrease in dissolved oxygen concentration(P > 0.05) and increase in ammonia and nitrite concentrations with increase in stocking density in the exposures, showing no significant effects of the probiotics on dissolved oxygen and ammonia nitrogen levels (P > 0.05). However, probiotics led to significant reduction in nitrite concentration and to increase in zooplankton biomass(P < 0.05). |
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| Keywords: | Acipenser schrenckii pond culture probiotics water quality |
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