Most of the Beira antelopes (Dorcatragus megalotis) that ever lived at Al Wabra Wildlife Preservation (AWWP) showed respiratory signs and since winter 2005/2006 many Beiras have diedfrom a Fibrinous Pleuropneumonia Syndrome (FPPS) with Mycoplasma spp. as suspectedcausative agent. Neither therapies with different drugs nor vaccinations yielded a sustained success against the respiratory disease so far. This study aimed to test if there is a relationship between management factors and the prevalence of respiratory problems, in order to find indications whether changes in management might decrease the risk of respiratory diseases. For this reason, environmental factors such as temperature and humidity as well as individual appearance (coughing, nasal discharge etc.) and feeding of vitamin/mineral supplements were recorded daily for over a year. There was a noticeable increase of affected Beiras during winter months.