Dairy cattle feeding on grass© Debbie James
A dairy farmer who is pursuing a milk solids output of 1.5kg for every kilogramme of cow liveweight is using genomics to identify herd replacements to achieve that goal. John Cartledge runs a 210-cow Holstein Friesian herd with cows producing 800kg milk solids per lactation on average on a year-round calving system. At 80.9ha, the farm is tightly stocked, so every heifer replacement must be the type of animal that will help the business maximise the potential of its milk […]