Lovastatin-Enriched Rice Straw Enhances Biomass Quality and Suppresses Ruminal Methanogenesis

Table 4

Effect of fermented rice straw extract (FRSE) on microbial population in the rumen liquid (cell/mL).

Microorganisms	Ethanol; (control)	FRSE; (10 mg)	FRSE; (20 mg)	Significant
Total methanogens (×10^7)	1.30 ± 0.172^a	0.98 ± 0.121^b	0.97 ± 0.248^b	*
Methanobacteriales (×10^6)	2.65 ± 0.215^a	2.20 ± 0.177^b	2.25 ± 0.240^b	*
Anaerobic fungi (×10^6)	2.69 ± 0.271^a	1.78 ± 0.922^b	0.47 ± 0.258^c	**
Total bacteria (×10^11)	2.55 ± 0.434^a	2.38 ± 0.329^a	1.93 ± 0.237^b	*
Ruminococcus albus (×10^8)	6.08 ± 0.966^b	10.46 ± 0.668^a	9.98 ± 1.139^a	**
Fibrobacter succinogenes (×10^7)	2.88 ± 0.742^b	6.87 ± 1.840^a	8.16 ± 0.686^a	**
Ruminococcus flavefaciens (×10^6)	1.05±0.375^b	1.46±0.360^a	1.31±0.226^a	*
Protozoa (×10^5)	4.12±0.893	4.65±0.663	4.12±0.692	NS

Data are mean ± SD.
NS: not significantly different.
*Significantly different at 5% level.
**Significantly different at 1% level.
a, b, and c: indicating means within row differed significantly.