Hardgrove farm overlooks the Solway Firth in Dumfries. Alistair and Fiona Marshall are second-generation farmers, whose attention to detail has contributed to their success of running of a high-yield dairy farm. The farm comprises 610 acres and the Marshalls currently milk Holstein-Friesian dairy cows with the whole herd, on average, producing 34 litres of milk a day. They intend to increase their herd size to 600 in the near future. In 2014, Alistair started to increase his herd by importing from the Netherlands and Germany and went from 350 head to the 560 he now milks. He plans to increase his herd to 600 in the near future and is currently using his own herd for replacements.Breeding of animals