Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2023, Vol. 39 ›› Issue (23): 116-120.doi: 10.11924/j.issn.1000-6850.casb2022-0655

Special Issue: 生物技术 水产渔业

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Effects of Culture Density on Growth of Penaeusvannamei and Water Quality in Biofloc Model

SONG Hongqiao(), GUAN Chongwu, ZHANG Yulei   

  1. Institute of Fishery Machinery and Instruments, Chinese Academy of Fishery Sciences/Key Laboratory of Fishery Equipment and Engineering Technology, Ministry of Agriculture and Rural Affairs, Shanghai 200092
  • Received:2022-08-02 Revised:2022-12-02 Online:2023-08-15 Published:2023-08-10

Abstract:

In order to explore the effect of different densities on the growth of Penaeusvannamei and water quality under the biofloc culture mode, Penaeusvannamei with an average weight of 0.08 g and body length of 18 mm were selected for the experiment. The culture density was 280 tails/m2 in group A, 340 tails/m2 in group B, and 400 tails/m2 in group C. Two parallel comparative experiments were conducted for each density, and the experimental period was 50 days. The results showed that group A was the appropriate density, with an average body weight of 4.16 g, body length of 79.6 mm, survival rate of 88.95% and feed coefficient of 1.1, which were better than those of group B and group C. During the test, the quality of aquaculture water was also better than that of group B and group C with higher density. The breeding density of 280 tails/m2can be used as a reference for breeding.

Key words: Penaeusvannamei, density, biofloc