Figure 4. Mean restraint scores ± standard error of the mean for restraint test 1 (R1) and restraint test 2 (R2) in 5 noise treatments (Control−, Control+, Music, Noise 1, Noise 2) (n = 10 dogs).

Higher scores reflected more sedation. Different letters indicate significant differences (P ≤ 0.05) at R1 time point treatments and different numbers indicated significant differences (P ≤ 0.05) R2 time points among treatments.