Main Content

The World of Protozoa, Rotifera, Nematoda and Oligochaeta

Entosiphon sulcatum

[ref. ID; 4568]

Test system

24 hr Acute toxicity

Strains

From Culture Collection of Algae and Protozoa, CEH Windermere, Ambleside, Cumbria, UK (CCAP) CCAP 1220/1B.

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/concentrations

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).