Auditory enrichment with different genres of music for colony queens.

The aim was to determine changes in clinical parameters, glucose concentration, cortisol and behavior in colony queens in no music conditions compared with exposing to different genres of music. Mixed breed clinically healthy queens ( N  = 9) were used. Queens were studied under no music conditions (control=CON) and auditory enrichment: Soft Rock (M1), Motown (M2), Pop (M3), Frenchcore (M4) and music that was composed to be species-appropriate for cats (M5). The queens underwent auditory enrichment, including three days of silence (D1-3), five consecutive days of auditory enrichment (D4-8) and three days of silence (D9-11). We recorded clinical parameters, glucose, cortisol and behavior. Data were analyzed with GLIMMIX. Queens showed a significant increase of femoral pulse during exposure to M1, M2 and M4; and respiratory rate during exposure to M1, M2, M3 and M4 compared with CON. There was a significant increase in glucose during exposure to M2 and M5 compared with CON. However, there was a significant decrease in glucose during exposure to M4 compared with CON. There was a significant decrease in cortisol during exposure to M2 and M5 compared with CON. When we evaluated the ethogram, we observed a significant decrease in the percentage of interaction with other cats in M1 and M2 compared with CON. In addition, we found a significant decrease in the purring in M1 and M3 compared with CON. Auditory enrichment can be beneficial in situations that cause discomfort and distress in colony cats, such as in feline hospitalization; however, it should be acknowledged that there are limits to direct extrapolation.