Using Z-Box to predict peNDF
—Z-Box system promising for determination of pef of “as fed” samples
—Vigorous vertical shaking 
—150 g/sample (3 - 50 g/replicates)
—pef Z-Box similar to pef1.18 
—CS and TMR: 3.18-mm sieve
—Haylage: 4.76-mm sieve
—Use different sieves for different feed types