Merck Manual

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Particle Size Recommendations for Totally Mixed Rations a

Particle Size Recommendations for Totally Mixed Rations a

Pore Sizeb (cm)

Particle Size (cm)

Percentage by Weight

Upper sieve

1.9

>1.9

2–8

Middle sieve

0.79

0.77–1.9

30–50

Lower sieve

0.13

0.18–0.77

30–50

Bottom pan

<0.18

≤20

a Based on the use of the Penn State Particle Separator. Data from J. Heinrichs and P. Kononoff, Pennsylvania State University.

b Pores are square, so the largest opening is the diagonal.