CASTERTON shearer Nathan Fidler was shearing in NSW with his father Peter when Fidler senior was struck down with a stroke in August.

Mr Fidler survived the stroke thanks to the efforts of a former nurse on the Ivanhoe property and the Royal Flying Doctor Service.

The 58-year-old has recovered, except for some issues with his speech, but his son is committed to doing what he can to improve stroke research.

"He should be enjoying life, not starting again," Nathan said.

From 7.30am on December 1, at the 2012 Merino Community Festival, Nathan is being sponsored to shear as many crossbred lambs as he can in eight hours.

Some people are sponsoring him per sheep shorn, but donations would also be taken on the day for the Stroke Foundation, he said.

"Dad will be there watching," Nathan said.

The festival at the Merino Recreation Reserve last year raised more than $6000 for community, school and sporting groups from Merino, Digby, Casterton and Hamilton.

This year it will also feature children's entertainment, mini-bike stunts, a tug-of-war competition, a quick shear event and live music.

Stroke Foundation donation pledges can be made to 0428 881 217.