tool
Humane twitch
The humane twitch are metal or wooden pliers consisting of two levers,
which are connected to each other by means of a hinge, a ring or a rope.
The two arms are straight or bent. In the former case, the joint ensures
that there is space left when the tool is squeezed; so the lip is not
squashed. The double arc in the second case serves the same purpose. A rack
on one of the arms and a ring on the other make it possible to hold the
tool in a certain position; a rope attached to an arm fulfills the same
role. The humane twitch pinches the very sensitive upper lip (1) of a horse
during treatment to divert the animal's attention and to induce a calming
and sedative effect in case of disturbing (e.g. eye care) or painful
procedures (cf. nose twitch) (2). [MOT] (1) According to '' Antique medical
instruments '': 226 the tongue would be caught, but there seem to be no
other traces of that method. (2) From an animal welfare point of view, the
nose twitch seems to be preferred to the humane twitch,...