In this video Big Tractor Power is out in the field with big farm machines harvesting alfalfa to make feed for dairy cows. The video explains the mowing, merging, forage harvesting and storage process of haylage. Viewers get to see and hear these big machines at work. Watch for a 230 hp JOHN DEERE 7230R Tractor fitted with a 32ft PÖTTINGER NOVA CAT Alpha Motion Triple Mower, 250 hp OXBO 4334 Self Propelled Merger, 582 hp JOHN DEERE 7780 Pro Drive Forage Harvester, 375 hp JOHN DEERE Tractor 9320 Tractor with a GROUSER Blade and a 235 hp CASE INTERNATIONAL 9230 Tractor with an Agromatic Silage Packer.