Figure 1From: Effect of local anaesthesia and/or analgesia on pain responses induced by piglet castrationEffect of treatment on call intensity. Mean value and SD for call intensity (dB(A)) for the treatments C, M, L and LM. Piglets castrated with lidocaine (L and LM) produced calls with significantly (p < 0.001) lower intensity than piglets castrated without lidocaine (C and M). Means with different letters indicate significant differences (p < 0.05).Back to article page