Abstract
This study aimed to determine the prevalence of classic stereotypies in thoroughbred race horses at the Hipódromo Chile (Chile) and the influence of gender and age. All population of thoroughbred racing horses resident at the Hipódromo Chile was studied (n = 565). Direct observation determined the presence or absence of cribbing, stall-walking, or weaving in each horse. Results are expressed as simple percentages. For statistical analysis, Fisher’s exact test was used with a significance level of p < 0.05. The overall prevalence of classic stereotypies was 6.19% (aerophagia 2.68%, stall-circling 2.33%, and weaving 1.79%). No association was found between stereotypies and gender. Association was only found between the presence of stall-circling and 2 to 3-year-old horses (p = 0.022). Results suggest that thoroughbred race horses at the Hipódromo Chile have a prevalence of classic stereotypies within the previously established range and that age is a risk factor for stall-circling.
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