Do you know which species of Oryx this applies too?
Are there any UK collections where species like Kudu & Eland are kept which are free of contamination?
Definitely Arabians. Not sure whether it applies to Gemsbok and Scimitar; possibly guilt by association... athough I am aware of Knowsley breeding Scimitars.
I don't believe contamination comes down to actual collections, rather species. Not 100% sure about eland as West Midlands and Knowsley both seem to breed theirs. Very few Greater kudu in the country. Edinburgh's Lesser kudu would be exempt, but there wouldn't have been any in the UK until recently.