The Impact of Noise Anxiety on Behavior and Welfare of Horses from UK and US Owner's Perspective.
Authors: Riva Maria Giorgia, Dai Francesca, Huhtinen Mirja, Minero Michela, Barbieri Sara, Dalla Costa Emanuela
Journal: Animals : an open access journal from MDPI
Summary
# Editorial Summary: Noise Anxiety in Horses—Prevalence, Risk Factors and Management Effectiveness Over 22% of horses reporting noise-related behavioural problems in a large cross-sectional survey of UK and US owners displayed signs of noise anxiety severe enough to warrant investigation, with researchers using cluster analysis to distinguish between very anxious (VA) and slightly anxious (SA) phenotypes. The VA group exhibited significantly more frequent anxiety behaviours, greater reactivity during noise events, and critically, showed no improvement over time, suggesting that noise anxiety may represent a distinct welfare concern rather than a transient habituation issue. Horses that had sustained injuries during noise events were substantially more likely to present with severe anxiety (odds ratio 0.24), indicating a bidirectional relationship between anxiety severity and accident risk that warrants careful assessment in susceptible individuals. Current owner-led interventions—predominantly provision of continuous hay, turnout management and field relocation—showed variable efficacy, with nocturnal hay provision demonstrating strongest effectiveness in SA horses (odds ratio 0.41), though the authors emphasise that existing strategies appear insufficient for the VA population. Given that noise anxiety poses genuine risks for both equine and human safety, practitioners should consider pharmacological intervention alongside environmental management, and may benefit from developing more targeted protocols for identifying and supporting horses demonstrating severe phenotypes before injury occurs.
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Practical Takeaways
- •Noise anxiety in horses is a significant welfare concern affecting ~22% of surveyed horses; identify and stratify severity early to tailor management approaches and prevent injury-related incidents
- •Simple environmental management strategies (hay provision, turnout, paddock changes) show promise for slightly anxious horses, but very anxious horses may require additional interventions including medicinal products
- •Monitor horses with a history of noise-related injuries closely as they are at greater risk of severe anxiety responses; consider preventive strategies before noise exposure events
Key Findings
- •409 of 1836 horse owners (22%) reported unusual behavior during noise events, with cluster analysis identifying 'very anxious' (VA) and 'slightly anxious' (SA) groups
- •Very anxious horses showed higher frequency of anxiety behaviors, greater noise reactivity, and lack of improvement over time compared to slightly anxious horses
- •Horses with reported injuries during noise events were significantly more likely to be in the very anxious group (OR = 0.24, 95% CI: 0.08-0.76)
- •Providing hay throughout the night was more likely to be an effective management strategy for slightly anxious horses (OR = 0.41, 95% CI: 0.16-1.01)