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Chinese Agricultural Science Bulletin ›› 2024, Vol. 40 ›› Issue (32): 157-164.doi: 10.11924/j.issn.1000-6850.casb2024-0190

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Effects Comparison of MABR Membranes and Microecological Preparations on Water Quality and its Nutrient Quality in Eriocheir sinensis Ponds

ZHOU Hanlin1,2(), WU Chun1, ZHANG Gaowei1, WANG Xuanpeng1()   

  1. 1 Suqian Institute of Agriculture Sciences, Jiangsu Academy of Agricultural Sciences, Suqian, Jiangsu 223800
    2 Huaiyin Institute of Agricultural Sciences of the Xuhuai District of Jiangsu Province, Huaian, Jiangsu 223003
  • Received:2024-03-18 Revised:2024-07-15 Online:2024-11-15 Published:2024-11-12

Abstract:

In order to investigate the different effects brought by MABR membrane and microecological preparation in the process of Eriocheir sinensis culture, we used MABR membrane and microecological preparations in Eriocheir sinensis culture ponds under the background conditions of juvenile crabs cultivation stage, and investigated the effects and potential mechanisms of the two water treatments on the water quality and nutritional quality of Eriocheir sinensis in the culture ponds through the determination of physical and chemical indexes of water quality, quantitative analysis of phytoplankton, and nutritional quality analysis of Eriocheir sinensis. The results showed that compared with the CK group, the group II approach had the best effect on the improvement of water quality, and reduced the content of ammonia nitrogen, nitrite, total phosphorus, total nitrogen, and COD in the pond water to different degrees; meanwhile, crude protein of the cultivated river crabs and crude fat contents were significantly higher than those of the control group (P<0.05), and the contents of total amino acids and essential amino acids were the highest (P<0.05). While the group I approach significantly increased the plankton biomass (P<0.05), and the content of essential amino acids/total amino acids was significantly higher than that of the control group (P<0.05). In conclusion, the use of MABR membrane and microecological agents can improve the water quality of Eriocheir sinensis culture ponds to a certain extent, and can also improve the nutritional quality of the cultivated Eriocheir sinensis.

Key words: Eriocheir sinensis, MABR membrane, microecological preparations, water quality improvement, nutritional quality