The Government is being called on to do all it can to stop the new EU/South American trade deal going through.
The Irish Farmers Association says the Mercosur deal is bad for farming communities, the environment and the consumer.
The agreement will see 99-thousand tonnes of beef enter EU markets.
It now needs to be approved by the European Parliament, European Council and member states before being rubber stamped.
IFA President Joe Healy says farmers are outraged and disappointed, particularly with Brexit on the horizon.