* Australia, others question U.S./EU beef deal
* So far only U.S. has benefited from new quota
GENEVA, Oct 23 (Reuters) - Australia and other beef exporters expressed concern on Friday that a deal settling a dispute over an EU ban on imports of hormone-treated beef had been slanted to favour U.S. suppliers.
Raising the question unexpectedly at a meeting of the World Trade Organisation's dispute settlement body, Australia said it welcomed assurances from Brussels that a new EU import quota for high-quality beef, at the centre of the deal, was non-discriminatory and was open to all countries.
"We note, however, that to date only the U.S. has secured access to the quota and has commenced exporting.
New Zealand, Brazil, Uruguay and Argentina then made similar statements.
The United States and European Union agreed in May to end their two-decades-long row over an EU ban on hormone-treated beef by increasing the European quota for other beef. The two trading powers circulated details of the deal last month.
Australia and the other exporters warned that they would monitor the application of the EU measures and work with Brussels to ensure that all countries had access to the market.
(Reporting by Jonathan Lynn; editing by Michael Roddy)