Table 3.

The particle size distribution of different roughage sources using the Penn State Particle Separator

	Roughage sources
Screen, mm	Corn silage	Sugarcane bagasse	Sugarcane	Soybean hulls	Low oil cottonseed hulls	SEM	P-value
	Particle, % retained on the sieve
>36	5.30b	8.19a	5.40b	0.00c	1.30c	0.64	<0.001
19 to 36	15.80b	22.74a	20.36a	0.00c	19.30ab	1.38	<0.001
8 to 19	64.58a	33.12d	51.40c	20.81d	60.02b	1.36	<0.001
<8	13.10e	37.17b	22.86d	80.42a	31.50c	1.94	<0.001
MPS1	19.1a	19.3a	19.5a	6.44c	15.62b	0.73	<0.001

¹MPS was determined according to Lammers et al. (1996).

^a–dMeans within a row with different superscripts differ (P < 0.05).