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Effect of Hydroponic Salix saposhnikovii on Cultivation of Procambarus clarkii

Animal Husbandry and Feed Science 2012年第1期4卷 38-40,44页

作者： SHI Lei GAO Qian WANG Lei HUANG Cheng TANG Jian-qing School of Life Science Nanjing UniversityNanjing 210093China Jinling College Nanjing UniversityNanjing 210089China Jiang-su Academy of Forestry Nanjing 211153China Freshwater Fisheries Research Institute of Jiangsu Province Nanjing 210017China

[ Objective] To provide basic research parameters for the laboratory culture of Procambarus clarkii using Salix saposhnikovii and the breeding materials for the clean environment-friendly aquaculture. [Method] The de-aerated water was used to culture the post larvae and P. clarkii juvenile. The effects of S. saposhnikovii roots on the survival rate, body length increase and body length variation coefficient of P. clarkii were in- vestigated. The survival rate of juvenile P. clarkii in the V class wastewater at 2 ammonia nitrogen concentrations were examined. [ Result] The post larvae of P. clarkii cultivated with S. saposhnikovii in the de-aerated water had significantly higher survival rate and longer body length than the control （ P 〈 0.05）, but there was no significant difference between the 2 treatments in the variation coefficient of body length. In the wastewater containing 2 mg/L ammonia nitrogen, the survival rate and ammonia nitrogen wastewater purification rate of the experimental juvenile P. clarkii were higher than the control. When the concentration of ammonia nitrogen increased to 10 mg/L, the survival rate of the experimental juvenile P. clarkii was still higher than the control, but there was no significant difference between the 2 groups in the purification rate of ammonia nitrogen. [ Conclu- sien] S. saposhnikovii has significant effect on the survival rate and growth of juvenile P. clarloTand can purify the wastewater containing 2 -10 mg/L ammonia nitrogen.

关键词： Salix saposhnikovii Procambarus clarkii Cultivation purification of ammonia nitrogen

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