Fig. 8

Proportions of different piglet vocalizations of all vocalizations recorded during the procedures. Results are shown for each treatment group separately: the piglets were either restrained in a tubular device (TUBE) or a hanging castration rack (HANGING), and treated with local anesthesia (LA) or with sham injections (NO LA) during administration of local anesthesia or sham injections (LOCAL) (a) and during castration (CASTRATION) (b)