This is the final of our Improving efficiency in sheep flocks podcast series.  In this episode we hear SAC Consulting's Senior Beef & Sheep Specialist Kirsten Williams chat with Donald Barrie, Farm manager at Glensaugh, one of the research farms run by the James Hutton Institute.   Donald explains how the farm is operated and the key areas of management for the sheep flocks - health, nutrition and genetics, to ensure maximum productivity.