TABLE 6.

Richness and diversity indices calculated from TRFLP incidence profiles of rumen fluid^a

Time	Period	Mean valueb under indicated conditions for:
		Richnessc			Diversityd
		Grain-induced SARA		Alfalfa pellet-induced SARA	Grain-induced SARA		Alfalfa pellet-induced SARA
		Mild	Severe		Mild	Severe
0 h	Control	69.9	46.8	41.3	3.1 a	2.8	2.8
	SARA	48.5	29.6	31.7	2.4 b	2	2.2
6 h	Control	93.6	48.1	25.2	3.2 a	2.8 ab	2.4 b
	SARA	45	49.2	42.5	2.3 b	2.4	2.8

^aRumen fluid samples were collected 4 days after SARA induction during SARA period.

^ba and b, mean values within the same row or column with different symbols differ (P < 0.05). Standard errors of the means were 35.3 for richness and 0.2 for diversity.

^cBased on Chao-2 richness estimator.

^dBased on Shannon diversity estimator.