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

Table 5

Comparative in vitro gas, methane and hydrogen productions by rumen microorganisms and rate of gas production between rice straw (RS) and fermented rice straw (FRS).

Gas production (mL)	RS	FRS	Significant
2 h	1.8±0.3	3.2±0.3	**
4 h	3.8±0.8	5.5±0.4	**
8 h	5.8±1.1	7.4±0.5	**
12 h	10.8±1.7	10.5±0.7	NS
24 h	31.9±2.4	22.6±2.1	**
36 h	47.0±2.4	35.9±2.9	**
48 h	55.9±1.0	47.0±2.2	**
Methane production
%	11.26±0.70	10.25±0.51	*
μM	28.15±17.058	214.78±9.087	**
H2 production
%	5.71±0.36	5.15±0.42	NS
μM	141.41±6.73	105.8±7.77	*
Rate of GP (mL/h)	1.16±0.020	0.979±0.047	**
Rate of CH4 (mL/h)	0.13±0.008	0.100±0.004	**
CH4/total	0.11±0.007	0.102±0.005	*

Data are means ± SD.
NS: not significantly different.
*Significantly different at 5% level.
**Significantly different at 1% level.