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Table 3 The ratio of the number of male/female (♂/♀) worms examined for each group at each timepoint (one female worm was found per nodule) and the median male (♂MOT) and (♀MOT) motility score before and up to 24 months the after the start of treatment in cattle following 7 monthly treatments with ivermectin 500 μg/kg subcutaneously, doramectin 500 μg/kg subcutaneously or untreated controls.

From: Repeated high doses of avermectins cause prolonged sterilisation, but do not kill, Onchocerca ochengiadult worms in African cattle

mpt   0 6 12 18 24
Control ♂/♀ 5/6 5/5 8/5 4/4 3/4
  ♂MOT 2 2 2 2 2
  ♀MOT 2 2 2 2/6 2
Ivermectin ♂/♀ 3/6 5/6 6/6 0.3 3/6
  ♂MOT 2 2 2 1.5 2
  ♀MOT 2 2* 2 2* 1.5*
Doramectin ♂/♀ 11/6 5/6 9/6 6/6 9/6
  ♂MOT 2 2 2 2 2
  ♀MOT 2 2 2 2 0.5**
  1. *= 1 calcified dead worm, **= 2 calcified dead worms