The Effect of Short-term Classical Music stimulus on Behavior and Tonic Immobility Reaction of Pullets.

The purpose of this study was to investigate the effect of short-term stimulation of classical music on the behavior of pullets and to explore whether classical music as an auditory enrichment factor reduces the fear level in pullets. One hundred and twenty 10-weeks'old Roman white pullets were randomly divided into two treatments of which one group was exposed to classic music (M), and another one was the control group (N). The music was played during 8:00-18:00 every day for 7 consecutive days. The behavior of the focal animals was observed from 11:00 to13:00 every day for 7 days. The results showed that during the observation period, the pullets in group M had more comforting (P < .05) and preening (P < .05), but less aggressive (P < .01) and feather-pecking (P < .01) behaviors than those in group N. No significant difference was found in other behaviors and the duration of tonic immobility between the two groups. Therefore, auditory enrichment as a means of environmental enrichment can increase the welfare level of pullets to a certain extent.