초록
<P><B>Abstract</B></P> <P>Biological inoculants were tested on <I>Pennisetum sinese</I> for their effects on fermentation characteristics, structural carbohydrates degradation, and enzymatic conversion yields. <I>Pennisetum sinese</I> was ensiled without additive, <I>Lactobacillus plantarum</I> (Lp), <I>Trichoderma reesei</I> (Tr), fibrolytic enzymes (E), and <I>Enterococcus faecium</I> (Y83) for 90 days. Y83 silages had higher LA and lower AA, ammonia-N and DM loss as compared to E and Tr silages. Tr and E had superior effects for degrading lignocellulose while Y83 had intermediate effects. The first-order exponential decay models (R<SUP>2</SUP> = 0.928–0.998) predicted nonstructural carbohydrates kinetics and demonstrated high water soluble carbohydrate (g/kg DM) preservation potential in Y83 (21.40), followed by Tr (18.94) and E (16.74). Addition of Y83 improved the conversion efficiency of <I>P. sinese</I> silage than Tr and E, indicated by higher glucose and total reducing sugars yield (22.49 and 36.89 w/w % DM, respectively). In conclusion, Y83 can be exploited for the ensiling lignocellulosic biomass before grass processing.</P> <P><B>Highlights</B></P> <P> <UL> <LI> The effect of <I>E. faecium</I> Y83 on <I>P. sinese</I> silage was compared to Tr and E silages. </LI> <LI> Y83 silages exhibited highest LA and lowest ammonia-N and DM loss. </LI> <LI> Y83 showed highest WSC preservation potential predicted by kinetic models. </LI> <LI> Tr and E had superior effects on degrading lignocellulose than Y83. </LI> <LI> Y83 improved the enzymatic efficiency as compared to Tr and E silages. </LI> </UL> </P>