Table 4. The relative abundance (%) of methanogenic genera in the rumen of sheep fed different diets (Mean ± SE).

Genera	S1		S2		S3		Overall Mean	SEM	P value
	Mean	SE	Mean	SE	Mean	SE
Methanobrevibacter (%)	92.2	0.62	89	3.26	83.4	2.44	88.2	1.7	0.096
Methanosphaera (%)	4	0.32	5.8	1.7	8.7	1.1	6.2	0.9	0.075
Methanosarcina (%)	3.8	0.3	5.2	1.56	7.9	1.3	5.6	0.8	0.127