This week a special programme looking at New Zealand's biggest export earner -- Dairy Farming. Ariarne Settle from Ashburton heads to a large local dairy farm and spends a few days with farm manager Will Grayling, Then Ariarne heads up to Hamilton to Dairy Nz's research labs to discover what technical advancements are being made in dairy farming... And finally Ariarne teams up with rural professionals to discover how they help the famer himself.