Retrospective case series to identify the most common conditions seen 'out-of-hours' by first-opinion equine veterinary practitioners.

Background: The study aim was to describe conditions seen 'out-of-hours' in equine practice.

Methods: This was a retrospective case series of first opinion 'out-of-hours' cases seen at two equine practices between 2011 and 2013. Data were retrieved on case presentation, diagnostic testing, treatment administered and outcome, and diseases categorised using a systems-based coding system.