DMD value of silage best indicator of feeding value
Silage yields can increase by up to two tonnes per acre per week, but DMD declines by more than two units per week after heading out, and at double this rate if crops are lodged. Poor fermentation can decrease DMD by up to seven units. Ryegrass is two to four units higher for DMD, and is easier to ensile than poorer grasses.
Each drop of five DMD units reduces milk yield by almost half a gallon of milk per day, and raises the cost of finishing cattle by over €70.
