Energy and protein utilization by goats fed Italian ryegrass silage treated with molasses, urea, cellulase or cellulase + lactic acid bacteria

The influence of ensiling potato hash waste with enzyme/bacterial inoculant mixtures on the fermentation characteristics, aerobic stability and nutrient digestion of the resultant silages by rams

“…Islam et al (2001) reported that a combined treatment of cellulase and LAB improved silage energy and N utilization by goats, which is in agreement with our findings.…”

“…Rams fed PHWB silage treated with viscozyme alone had lower (P < 0.05) digestibility of fibre compared to other treatments (Table 3). Our work corroborates that of Islam et al (2001) who reported a reduced DM digestibility when cellulase alone was added to Italian ryegrass at ensiling. The decreased (P < 0.05) NDF digestibility of viscozyme treated PHWB silage is probably related to the degradation of easily digestible portion of NDF by enzyme during ensiling, leaving the less digestible portion of NDF for microbial degradation in the rumen and in the lower tract (Nadeau et al, 2000).…”

“…This suggest that the enzyme degraded structural carbohydrates of PHWB silage to fructose and glucose (Dean et al, 2005). This agrees with Islam et al (2001) who reported reduced NDF content of silage with cellulase addition.…”

“…Rams fed PHWB silage treated with enzyme/inoculant had significantly lower (P < 0.05) NI and total N excretion compared to other treatments (Table 4). However, rams fed treated PHWB silage had greater (P < 0.05) N retention (as % of NI) and N digestibility compared to those fed on control PHWB silage, which concurs other reports from different silages (Luther, 1986;McAllister et al, 1998;Islam et al, 2001;Nkosi et al, 2010). In contrast, Burghardi et al (1980) reported lack of improvement in N retention with microbial inoculation.…”

“…Therefore, when LAB is combined with enzymes (enzyme/inoculant) during ensiling, a greater effect should be expected because more fermentable sugars will be released enabling LAB to produce more lactic acid. An enzyme/inoculant treatment has been reported to have a positive effect on silage fermentation quality (Kung et al, 1991;Chen et al, 1994;Nkosi et al, 2012), reduced silage fibre content (NDF and ADF) (Weinberg et al, 1993), improved dry matter (DM) and organic matter (OM) digestibility (Cai and Ohmomo, 1995) and N utilization by ruminants (Islam et al, 2001).…”