This study presents the clinical findings, treatment results, and gross pathology of Trueperella pyogenes–associated interdigital necrobacillosis in captive goitered gazelles (Gazella subgutturosa). Four male and two female gazelles presented with weight loss, front limb swelling, and persistent lameness despite antibiotic treatment. The animals were reluctant to bear weight on the affected limbs, and the diagnosis of interdigital necrobacillosis was made based on physical exam, bacteriologic evaluation, and radiographic imaging. In all cases, the interdigital skin and subcutaneous tissues were affected in both forelimbs. Exungulation (loss of the hoof) occurred in one female gazelle. Despite aggressive topical and systemic treatment, the two female gazelles died. Gross pathology detected abscesses in the heart, lung, and liver. T. pyogenes was isolated as the major pathogen. This is the first report of interdigital necrobacillosis caused by T. pyogenes in Gazella subgutturosa.
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