Procedures which cause minor discomfort or low-level anxiety
or apprehension for short periods.
For instance: experiments on completely anaesthetised
animals which do not regain consciousness; standard methods of euthanasia
that rapidly induce unconsciousness (e.g. anaesthetic overdose); taking a
blood sample from a superficial vein; injecting a non-toxic substance; skin
tests which cause low-level irritation without ulceration; feeding trained
animals by a tube passed via the mouth into the stomach; movement of
free-range domesticated animals to unfamiliar housing.
Little suffering or noxiousness. Procedures require justification.
