|
Density |
Measurement of the weight of a feed in relation to its volume usually provided in g/cc units. |
|
DGW |
Geometric Mean Diameter. Measurement for micron particle size analysis. |
|
SGW |
Geometric Standard Deviation. Measure of uniformity for micron particle size analysis. |
|
Recommended Particle Sizes
(Penn State Method) |
|
Sieve* |
Product |
| |
TMR |
Haylage |
Corn Silage |
|
Upper (.0.75") |
6 - 10% or more
3 - 6% focus on TNDF & FNDF** |
10 - 15% in sealed silo
15 - 25% in bunker |
2 - 4% of not sole forage
10 - 15% if chopped & rolled |
|
Middle (0.75 - 0.31") |
30 - 50% |
30 - 40% |
40 - 50% |
|
Bottom (<0.31") |
40 -60% |
40 - 50% |
40 - 50% |
|
*Portion remaining on the screen |
|
**Total ration NDF and Forage NDF |
|
|
Recommended Particle Sizes (Kansas State University) |
|
SGW
Ranking |
Standard Deviation
of Particle Size |
|
Excellent |
1.0 - 2.0 |
|
Good |
2.0 - 2.3 |
|
Fair |
2.3 - 2.6 |
|
Poor |
> 2.6 |
|
