The scales reveal the impact of last spring's poor weather on lambs

The current thrive rates on Michael Duffy's farm in Inishowen are excellent, but overall lamb weights are still down on 2014

Michael Duffy collecting grass last July for a refractometer (sugar percentage test) on his farm in Co Donegal.

John Cannon

Our last report on the Duffy farm in Donegal referred to the dominant role played by the poor weather.

While things did improve for about three weeks in late June and early July it was followed by four weeks of cold and wet weather from mid-July until mid-August.