低盐度条件下生物絮团的营养组分及凡纳滨对虾和银鲫 对其摄食效率的研究
PDF下载 (374)张亚卓1,郑忠明1*,华建权2,郑余琦1,王 政1,林会洁1.低盐度条件下生物絮团的营养组分及凡纳滨对虾和银鲫 对其摄食效率的研究[J].宁波大学学报(理工版),2016,29(3):29-33.DOI:
ZHANG Ya-zhuo1,ZHENG Zhong-ming1*,HUA Jian-quan2,ZHENG Yu-qi1,WANG Zheng1,LIN Hui-jie1.Bio-floc Nutrition and Nitrogen Uptake by Shrimp and Silver Prussian Carp in Polyculture Brackish Water
[J].Journal of Ningbo University(Natural Science & Engineering Edition),2016,29(3):29-33.DOI:
| Title: | Bio-floc Nutrition and Nitrogen Uptake by Shrimp and Silver Prussian Carp in Polyculture Brackish Water |
| 作者: | 张亚卓1, 郑忠明1*, 华建权2, 郑余琦1, 王 政1, 林会洁1 |
| Author(s): | ZHANG Ya-zhuo1, ZHENG Zhong-ming1*, HUA Jian-quan2, ZHENG Yu-qi1, WANG Zheng1, LIN Hui-jie1 |
| 关键词: | 银鲫; 对虾; 水质 |
| Keywords: | bio-floc; silver prussian carp; shrimp; water quality |
| 分类号: | S966.1 |
| 文献标识码: | A |
| 摘要: | 通过用稳定同位素15N标记生物絮团菌体蛋白, 研究了低盐度1.08±0.07)‰海水混养模式下生物絮团的营养成分对虾、鲫对生物絮团的摄食. 结果表明: 生物絮团能够将水体氨氮和亚硝氮固定为自身的有机氮; 生物絮团含有养殖生物生长所需要的基本营养物质 而鲫和对虾可以固定生物絮团中的有机氮为自身蛋白, 即单位体重银鲫和凡纳滨对虾固定氮量分别为104.92±30.91)mg·kg-1和135.6±24.17)mg·kg-1, 相当于单位体重银鲫和凡纳滨对虾每天摄食的生物絮团为1907.36mg·kg-1和2465.1mg·kg-1, 且鱼虾混养能够促进对虾对生物絮团的摄食; 同时鲫对虾的生物排氮作用和生物絮团的固氮作用能够促进养殖池塘的氮循环; 实验组含量显著降低保持在0.03± 0.01)mg·L-1和0.325±0.035) mg·L-1. |
| Abstract: | The bio-floc nutrition and the uptake nitrogen by silver prussian carp and shrimp based on 15N tracing in polyculture brackish (1.08±0.07)‰ system is investigated. The results show that ammonia nitrogen and nitrite nitrogen can be fixated to bio-floc nitrogen, which can be fixated by silver prussian carp and shrimp, amounting to be (104.92±30.91) (mg·kg-1)·d-1 and (135.6±24.17) (mg·kg-1)·d-1, equivalent to 1907.36 mg·kg-1 and 2465.1mg·kg-1 dry weight of bio-floc respectively. The uptake of bio-floc by shrimp can be improved in fish-shrimp polyculture system; the nitrogen circulation in the pond can be improved by aquaculture animals denitrogen and bio-floc nitrogen fixation cooperation. The levels of ammonia and nitrite nitrogen are found to be significantly low in treatment of the last period of experiment (P<0.05) and the values remain at (0.03±0.01) mgL-1 and (0.325±0.035) mgL-1 respectively. |
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| 备注/Memo: | 收稿日期: 2016?01?22. 宁波大学学报（理工版）网址: http://journallg.nbu.edu.cn/ 基金项目: 国家科技支撑计划项目（2011BAD13B08）; 宁波市海洋与渔业局项目（HK2015000047, HK2015000022）. 第一作者: 张亚卓（1990－）, 男, 河南洛阳人, 在读硕士研究生, 主要研究方向: 水产养殖生态. E-mail: 13646624793@163.com *通信作者: 郑忠明（1965－）, 男, 浙江宁波人, 教授, 主要研究方向: 水产养殖, 水域生态与环境. E-mail: zhengzhongming@nbu.edu.cn 宁波大学学报（理工版）网址：http://journallg.nbu.edu.cn/ |
