The Wall Street bank expects €1 to be worth £1 next year, compared to 91p at the moment. For example, this means 1kg of carcase beef worth €4 would cost a British buyer £4 instead of £3.63 this week, putting pressure on Ireland's agri-food exports to the UK.

The euro is also forecast to climb in value against the US dollar, hitting €1=$1.25. This would again hit the competitiveness of Irish exports in the US and other markets around the world where the dollar is the currency of reference.

On Thursday, Kerry group cut its growth outlook for this year because of deteriorating currency terms.

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Dairy markets: currency turning against European dairy exporters