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Chinese Agricultural Science Bulletin ›› 2023, Vol. 39 ›› Issue (14): 139-143.doi: 10.11924/j.issn.1000-6850.casb2022-0403

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Acute Toxicity of Potassium Ferrite (K2FeO4) to Channel Catfish Ictalurus punctatus Juveniles and White Shrimp Litopenaeus vannamei

ZHONG Liqiang1,3(), ZHOU Liying2, ZHANG Shiyong1,3, JIANG Hucheng1,3, CHEN Xiaohui1,3, WANG Minghua1,3()   

  1. 1 Freshwater Fisheries Research Institute of Jiangsu Province, Nanjing 210017
    2 College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu 225009
    3 The Jiangsu Provincial Platform for Conservation and Utilization of Agricultural Germplasm, Nanjing 210014
  • Received:2022-05-19 Revised:2022-09-22 Online:2023-05-09 Published:2023-05-09

Abstract:

To confirm the safety of K2FeO4 to aquaculture organisms, the acute toxic effects of K2FeO4 to channel catfish Ictalurus punctatus juveniles and white shrimp Litopenaeus vannamei were evaluated with static bioassays. The results showed that the toxicities of K2FeO4 to channel catfish Ictalurus punctatus juveniles and white shrimp Litopenaeus vannamei were different, but the toxicities were both low, with 96 h LC50 values of 95.01 mg/L and 609.45 mg/L, respectively. The toxic effect to I.punctatus juveniles occurred in 24 hours after contacting the toxic substance, while the cumulative death rate of L.vannamei was proportional to exposure time. The present study will be helpful for the application of K2FeO4 in the culture of channel catfish and white shrimp.

Key words: potassium ferrite, Ictalurus punctatus, Litopenaeus vannamei, acute toxicity