Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2021, Vol. 37 ›› Issue (4): 159-164.doi: 10.11924/j.issn.1000-6850.casb20200100033

Special Issue: 园艺

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The Effects of Integrated Lotus-Soft Shelled Turtle System on Water Quality and Growth Properties of Lotus and Soft Shelled Turtle

Wang Fen1,2,3(), Cheng Yunsheng1,2,3, Hou Guanjun1,2,3, Ji Suofei1,2,3, Song Guangtong1,2,3, Li Hu4, Zhang Ye4, Wu Yuchun5, Li Zhengrong1, Zhu Chengjun2, Li Jie6, Jiang Yelin1,2,3()   

  1. 1Fisheries Research Institute, Anhui Academy of Agricultural Sciences, Hefei 230031
    2Anhui Engineering Research Center for Turtle Farming Technology, Bengbu Anhui 233701
    3Key Laboratory of Aquaculture and Stock Enhancement for Anhui Province, Hefei 230031
    4Ma’anshan Chunsheng Ecological Agriculture Co., Ltd., Ma’anshan Anhui 243000
    5Anhui Heishen Ecological Agriculture Co., Ltd., Wuhu Anhui 241000
    6Anhui Shuoran Ecological Agriculture Technology Co., Ltd., Hefei 231151
  • Received:2020-01-10 Revised:2020-06-05 Online:2021-02-05 Published:2021-01-25
  • Contact: Jiang Yelin E-mail:wangfen523@163.com;jiangyelin@qq.com

Abstract:

To study the impact of integrated lotus-soft shelled turtle system on the water quality and the growth properties of lotus and soft shelled turtle, water quality, species and quantity of zooplankton and phytoplankton in the soft shelled turtle monoculture system, lotus-soft shelled turtle coculture system and lotus monoculture system were investigated monthly from Jun to October, 2019. The results showed that the concentrations of ammonia and COD significantly decreased under the integrated lotus-soft shelled turtle system compared with soft shelled turtle monoculture system. The species and diversity indices of zooplankton and phytoplankton did not differ among the three systems significantly. The protozoan, rotifer and copepods were the dominated zooplanktons species in the three systems. For the monoculture system, species of green algae and blue-green algae mainly dominated the phytoplankton populations, while green algae, diatom blue-green algae and euglena dominated the phytoplankton populations in the integrated system. The survival rate and specific growth rate in the integrated system increased by 23.29% and 1.59%, respectively. In the meanwhile, the FCR was 17.92% lower than the soft shelled turtle monoculture. Compared with those of the system of lotus monoculture, 100-grain weight and the number of lotus seedpods of the integrated system were increased by 9.76% and 7.23%.

Key words: integrated lotus-soft shelled turtle system, water quality, zooplankton and phytoplankton, growth properties, diversity index

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