Genomics is proving a more accurate measure of future performance than predicted transmitted ability (PTA) at Curlew Fields Farm, in York.   Dairy farmer Roger Hildreth is an avid user of genomics to help him select heifers that are the best fit for his all-year calving herd. Mr Hildreth, who milks 112 cows alongside his wife Judith and son Tom, take ear tissue samples from every heifer Holstein calf born on Curlew Fields Farm at between one and five weeks […]