Fig. 5

Estimated marginal mean and standard error for mean reaction scores for piglets restrained with different devices and treated with or without local anesthesia. The piglets were restrained either with a tubular device (TUBE) or a castration rack (HANGING). The piglets received either local anesthesia (LA) or sham injections (NO LA) before castration. Three observers scored piglets’ reaction at four time points: (a) RESTRAIN 1 (only restraining, n = 172); (b) LOCAL (restraining and administration of local anesthesia/sham injections, n = 177); (c) RESTRAIN 2 (only restraining, n = 178) and (d) CASTRATION (restraining and surgical castration, n = 179)