Why evaluate Particle Size?
Correct chop length minimizes air (oxygen) in the pile or bunker.
Correct chop length is important for fiber in the ration.
Recommended corn Theoretical Length of Chop (TLC) is 1/2" to 3/4". Grass and alfalfa TLC is 3/8" to 1/2".
When should Particle Size be evaluated?
Before harvest, set up a station at weigh scale or safe area.
During harvest, once per hour, sample chopped silage before it is piled/stored.
Run the Dry Matter Test and Kernel Processing Score Test at the same time for efficiency and maximum valuable data.
What equipment is needed?
Container for weighing sample
Binder to file results of all tests
Who can run the test?
Anyone who can keep samples organized and do simple math on a calculator
Recruit and train two to three people to make sure tests are run over entire harvest