Table 6. Particle Size (yum) Cumulative Fecal Output for Excretion of One-Half the Particle Dose Ke of Cumulative Fecal Output for 50% Excretion of Particles Cow 123 Cow 153 Cow 184 Cow 241 20 25 40 40 26 80 100 82 192 72 200 205 83 330 74 450 450 64 260 93 160