Music enrichment improves the behavior and leukocyte profile of dairy cattle

Abstract

Different studies have suggested that musical enrichment in dairy cattle management reduces animal stress and enhances milk production, management, and disease resistance. Thus, in the present work, we proposed to evaluate the response of a group of Holstein cows to musical stimulation, through the analysis of their leukocyte profile and the recording of voluntary approach to milking parlor. An ABAB design was used, consisting of alternating periods with and without music during the management of 15 Holstein cows for 14 days. At the end of each period, blood samples were collected to determine the number of leukocyte counts. In addition, a voluntary approach to the milking parlor was measured. For statistical analysis, the nonparametric Wilcoxon signed-rank test with an alpha value of 0.05 was used. During periods with music, more cows voluntarily approached the milking parlor and had higher total leukocyte counts. In conclusion, music enrichment improves cattle handling, with a significant positive effect on leukogram profiles.