The unions said: "Farmers want clarity on what the future trading relationship with Europe will be. We have argued for free and frictionless trade with the EU to continue, with no tariffs or non-tariff barriers.

"The default of trading with the EU under WTO rules alone is unacceptable and would decimate our industry.

"The draft Brexit Withdrawal Agreement, while not perfect, will ensure that there are no hard barriers on the day we leave the European Union, and will allow trade in agricultural goods and UK food & drink to continue throughout the transition period largely as before. This opportunity needs to be taken.

"British farmers produce food to some of the highest production and animal welfare standards in the world. The food and farming industry continue to urge government to protect these standards and maintain the high levels of trade in agricultural goods between the UK and the EU, our largest export market."