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The short-term toxicity of some feed additives to different freshwater organisms

Summary

The short-term toxicity (EC50 respectively LC50 after 2 or 4 days) of 13 feed additives was determined to 4 freshwater organisms of different trophical levels: Chlorella pyrenoidosa, Daphnia magna, Lebistes reticulatus and Salmo gairdneri. The most toxic (LC(EC)50 < 1 mg/1) were robenidine (to all tested organisms) and stenorol (to Daphnia); moderately toxic (1 < LC(EC)50 < 10 mg/1) was pyrimethamine. Amprolium, ethopabate, furazolidone and zoalene proved to be little toxic (LC (EC)50 > 10 mg/1); whereas buquinolate, carbadox, clopidol, decoquinate, grofas and sulfaquinoxaline were under the experimental conditions not toxic for the tested organisms.

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Canton, J.H., van Esch, G.J. The short-term toxicity of some feed additives to different freshwater organisms. Bull. Environ. Contam. Toxicol. 15, 720–725 (1976). https://doi.org/10.1007/BF01685623

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Keywords

  • Chlorella
  • Pyrimethamine
  • Feed Additive
  • Furazolidone
  • Freshwater Organism