Table 4.

Effects of different straw particle sizes on rumen bacterial community at genus level (%).

Units	Particle size			SEM	p-value
	1 mm	2 mm	4 mm
Prevotella	30.72b	40.43a	39.61a	1.85	<0.01
Ruminococcus	14.52	15.01	13.69	4.02	0.12
Butyrivibrio	9.20	8.77	5.00	3.89	0.17
Clostridiales	4.56	5.05	5.00	0.45	0.31
Christensenellaceae	4.45	4.30	4.56	0.17	0.45
Lachnospiraceae	4.01	4.09	5.00	0.65	0.62
Treponema	2.10b	3.85a	2.06b	0.37	<0.01
Succiniclasticum	1.89	1.63	1.52	0.22	0.47
Oscillospira	0.88a	0.64b	0.44c	0.03	<0.01
Mogibacteriaceae	0.74a	0.43b	0.27c	0.03	<0.01
Others	26.93	15.80	22.85	5.83	0.07

SEM, standard error of the mean.

^a−cMeans within a row for doses that do not have a common superscript differ (p <0.05).