It can vary greatly from the total fiber fed. More on that to follow. The chopper processor does add value to corn silage. You can chop longer because you are crushing kernels and cobs instead of trying to cut them at the shear bar. This longer fodder maintains healthier rumens by adding to the rumen mat.
Cows also consume a greater amount of the fed fiber because there are no cob discs to leave behind.
The cobs are crushed in processing and then consumed because they can t be sorted out. The orts look more like the TMR with processed corn than with unprocessed. Kernel digestion is better with a chopper processor. As you can see, the score is even. I say yes.