| 养殖密度对硝化型生物絮团系统中凡纳滨对虾生长和水质的影响 |
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| 引用本文： | 朱亦晨,谭洪新,罗国芝.养殖密度对硝化型生物絮团系统中凡纳滨对虾生长和水质的影响[J].上海海洋大学学报,2020,29(1):27-35. |
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| 作者姓名： | 朱亦晨 谭洪新 罗国芝 |
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| 作者单位： | 上海海洋大学 上海水产养殖工程技术研究中心,上海 201306;上海海洋大学 上海水产养殖工程技术研究中心,上海 201306;上海海洋大学 农业农村部淡水水产种质资源重点实验室,上海 201306;上海海洋大学 水产科学国家级实验教学示范中心,上海 201306 |
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| 基金项目： | 上海水产养殖工程技术研究中心能力提升项目（19DZ2284300） |
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| 摘 要： | 利用硝化型生物絮团系统进行凡纳滨对虾的养殖,并通过设置不同的养殖密度探究不同养殖密度下硝化型生物絮团系统对凡纳滨对虾生长性能和水质情况的影响。实验选择同一批标粗到一定规格的健康凡纳滨对虾体长(4.80±0.25) cm,体质量(0.98±0.16)g],分成5个密度梯度组放养到养殖池中,进行为期45 d的养殖。结果表明:80～610尾/m~3范围内,硝化型生物絮团系统对非离子氨和亚硝酸盐氮可以控制在警戒浓度(0.2 mg/L)附近波动,为凡纳滨对虾健康生长提供了良好的环境,保证养殖存活率,另外该系统下适当的排污可以避免高密度养殖下硝酸盐氮积累太快;80～610尾/m~3时存活率随密度升高而下降,但产量随密度升高而增加。
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| 关 键 词： | 生物絮团养殖系统 硝化型生物絮团 凡纳滨对虾 生长 水质 |
| 收稿时间： | 2018/4/26 0:00:00 |
| 修稿时间： | 2019/8/1 0:00:00 |
Effect of different stocking density on growth performance of Litopenaeus vannamei and water quality in nitrifying bio-floc system |
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| ZHU Yichen,TAN Hongxin and LUO Guozhi.Effect of different stocking density on growth performance of Litopenaeus vannamei and water quality in nitrifying bio-floc system[J].Journal of Shanghai Ocean University,2020,29(1):27-35. |
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| Authors: | ZHU Yichen TAN Hongxin and LUO Guozhi |
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| Institution: | Shanghai Engineering Research Center of Aquaculture, Shanghai Ocean University, Shanghai 201306, China,Shanghai Engineering Research Center of Aquaculture, Shanghai Ocean University, Shanghai 201306, China;Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture and Rural Affairs, Shanghai Ocean University, Shanghai 201306, China;National Demonstration Center for Experimental Fisheries Science Education, Ministry of Education, Shanghai Ocean University, Shanghai 201306, China and Shanghai Engineering Research Center of Aquaculture, Shanghai Ocean University, Shanghai 201306, China;Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture and Rural Affairs, Shanghai Ocean University, Shanghai 201306, China;National Demonstration Center for Experimental Fisheries Science Education, Ministry of Education, Shanghai Ocean University, Shanghai 201306, China |
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| Abstract: | By nitrifying bio-floc system to culture Litopenaeus vannamei, and by setting different stocking density, the influence of nitrifying bio-floc systems was explored at different culture density on growth performance and quality of Litopenaeus vannamei. Some healthy Litopenaeus vannamei in same sizebody length (4.80 + 0.25) cm, body mass (0.98 + 0.16) g] were selected to culture 45 days at five different stocking density treatments. The results showed that:In the range of 80-610 ind/m3 density, the nitrifying bio-floc system can control the Un-ionized ammonia and Nitrite-N near the warning concentration (0.2 mg/L),which improves the environment for health growth of Litopenaeus vannamei and ensure the survival rate of culture, and in addition,appropriate sewage discharge at the system can avoid the Nitrate-N concentration accumulation too fast in high density culture; In the range of 80-610 ind/m3 density, the survival rate of Litopenaeus vannamei declined with the increase of density,but the yield increased with the increase of density. |
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| Keywords: | Bio-floc culture system nitrifying bio-floc Litopenaeus vannamei growth water quality |
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