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The World of Protozoa, Rotifera, Nematoda and Oligochaeta

Paraphysomonas

  1. Paraphysomonas imperforata
  2. Paraphysomonas vestita

1. Paraphysomonas imperforata

[ref. ID; 4568]

Test system

24 hr acute toxicity

Strains

From B.S.C. Leadbeater.

Toxicants

Sheep dip formulations 1) OP, Ectomort (Young's Animal Health, UK) containing 8% propetamphos as the active ingredient, 2) SP, Bayticol (Bayer, Germany) containing 6% flumethrin as the active ingredient.

Test design/concentration

96-well microtitre plates, concentrations ranging from 0.00001% to 1% (dip formulation:total volume), 20 degrees C.

Measurements/observations

Viability by phase contrast inverted microscopy.

Evaluations

Minimum inhibitory concentration (MIC).

2. Paraphysomonas vestita

[ref. ID; 4568]

Test system

24 hr acute toxicity

Strains

From Culture Collection of Algae and Protozoa, CEH Windermere, Ambleside, Cumbria, UK (CCAP) CCAP 935/14.

Toxicants

Sheep dip formulations 1) OP, Ectomort (Young's Animal Health, UK) containing 8% propetamphos as the active ingredient, 2) SP, Bayticol (Bayer, Germany) containing 6% flumethrin as the active ingredient.

Test design/concentration

96-well microtitre plates, concentrations ranging from 0.00001% to 1% (dip formulation:total volume), 20 degrees C.

Measurements/observations

Viability by phase contrast inverted microscopy.

Evaluations

Minimum inhibitory concentration (MIC).