4. Passage rate model
—Seo et al. (2006) equations were the best among a total of 8 tested equations
—However, the predictability was still low
—Forage passage
—R2 = 39%
—RMSPE = 0.011 h-1
—Liquid passage
—R2 = 25%
—RMSPE = 0.033 h-1
We developed new empirical equations to predict fractional passage rate of forage, concentrate and liquid, and they were the best among a total of 8 tested equations, as assessed by the highest R-square and the lowest root mean square prediction error.
However, the predictabilities were still low.
When evaluated with an independent database,
Forage passage equation explained 39% of the variation in independent observations with a root mean square prediction of .011 1 over hour,
And for liquid passage, r-square was only 25% and root mean square prediction error was .033 one over hour